73 Magazine Radio Editions 1960 – 1970

73 Magazine Radio Editions 1960 – 1970

October 1960 (#1)

o Audio Booster – A three transistor amplifier that hooks across the mike to give you more talk power for SSB or AM without distortion …… K5JKX/6

o Something New in FM – Using the new varicap as a FM modulator …… W7CSD 10

o Bantam Converters – Two-tube VHF converters for 50-108-144-152-220 MHz bands …… W9DUT 12

o Risky Hobby – How to fall off your tower for fun and profit …… K9AMD 16

o Tubeless Electronic Key – Just uses some relays. Also tells how to convert your bug …… W1TUW 18

o Digest of Surplus – Short lecture tour through your local surplus emporium …… W1MEG 20

o Direct Reading Capacity Meter – Two transistors. You’ve got a lot of resistance if you can keep from building this gadget …… W6EAW 22

o Gotta Patch? – Instructions for phone patching and avoiding trouble …… W6KNE 24

o Three-Way Power Supply – 6, 12, 120 volt supply using kit-available parts …… W3UZN 26

o Shock – New facts on electric shock, or what to do until rigor mortis sets in …… Bates 28

o Propagation Charts – What bands what time to where probably …… K2IGY 30

o Three Tubes, Five Watts, Six Meters – How to get on Six in a hurry …… K8NIC/5 32

o How To Be An Amateur – For adults only. Children under 16 not admitted …… W2ZGU 34

o Testing the Heath GC-1A – Well, well! A transistorized communications receiver! …… 73 Staff 38

o Modulation Fundamentals – This is our big technical article for the month …… W0TKU 42

November 1960 (#2)

o Transistorized 10 Meter Converter – Not only that, but it uses a printed circuit you can make …… W3BUL 9

o Four Band Crystal Converter – 20-15-10-6 meters using the new International Crystal converters …… W3UZN 12

o FM VFO Exciter – Butchered BC-459 for 6 and 2 meter FM or NFM operation …… W1TUW 14

o Mobile Power – How to put some beef into that mobile signal …… K5JKX/6 16

o Cardboard Chassis – Building on the kitchen table… How easy can we make it? …… K5JKX/6 18

o Stop That Noise – This is our technical article of the month: Noise Clipping, etc …… 73 Staff 20

o Measures Your Modulation – Overlay for your ‘scope to get modulation percentage …… K5JKX/6 25

o Some Hard Facts About Echo – The Moon makes a better reflector …… W6MMU 26

o Improving Performance of the Communicator III – A new front-end tube that improves the S/N considerably …… W1MCA 28

o VHF Tri-Mode Receiver – AM-CW-SSB tuner to go with last month’s Bantam Converters …… W9DUT 30

o Toroid Coils – Quickie think article plus an idea on mounting ’em …… Paffenberg 37

o $5 Frequency Counter – Two transistors and it reads 0-300 Hz, 1 kHz, 3 kHz, 10 kHz, 30 kHz …… K5JKX/6& 38

o Wabbit Ears – 20 meter dipole, compacted slightly …… W6EHY 41

o Propagation Forecast – What bands what time to where …Probably …… K2IGY 42

o Equipment Manuals – Special article for manufacturers …… K2DHA 44

o Finding True North – How to zero in your beam on the North Star …… W5LFM 49

December 1960 (#3)

o Transistorized 220 MHz Converter – Crystal controlled too …… W3HIX 8

o RF Sniffer – Snooper sensitive RF detector which you will build …… K5JKX/6 11

o SSB Dynamic Demonstrator – Teaching SSB calls for some tricky stratagems …… W2UQB 12

o Capacity Meter – Two ranges : 0-40 pF (resolves 1 pF) and 0-900 pF …… K8ERV 14

o Station Control System – Even if you don’t build this one it will give you ideas …… W1TUW 16

o The Multivibrator in VOX Circuitry – Technical article ending up with a corker of a VOX circuit …… Paffenberg 18

o The Fine Art of Transistorizing – Changing your tube circuits to transistors …… K5JKX/6 22

o Simplify Your Log Keeping – Just an idea which you probably won’t like anyway …… Staff 25

o Perfect Squelch – Our big technical article for the month… all about squelching …… Staff 26

o Low-Noise Two Meter Converter – The newest, the latest, the hottest 417A converter yet …… ZL1AAX 32

o Surplus Frequency Standard – Simple conversion or the VO-4 oscillator. You’ll like it …… Paffenberg 40

o Simple Phone Patch Herb Brier – This one is pretty simple and effective. Next month a simpler one …… W9EGQ 42

o New Tube Base Coil Forms – OC3W, 5R4WGA. etc, bases make splendid coil forms …… Paffenberg 44

o Propagation Forecast – What bands what time to where… probably …… K2IGY 50

1961

January 1961 (#4)

o Nuvistor Converters for Six and Two – 417A performance without 417A cost …… K8ERV 8

o Down With Drift – Step-by-step stabilization of your receiver …… K5JKX/6 12

o 6N2 Completed – Eico, Heath, and Johnson kits add up to 100 watts on Six and Two …… W3UZN 14

o 1296 MHz – Secret confessions of an UHF addict …… K2TKN 16

o Goblin Patrol – Hams team up with cops to louse up Halloween for the kids …… W8UCY 18

o Lost in a Tunnel – Pioneering frustrations of a diode speilunker …… K5JKX/6 20

o 8 MHz Crystal Modification Kit – For thee who art long on 8 MHz rocks …… W3UZN 24

o Transistorized Frequency Standard – Think of all the advantages …… W7OE 26

o Suction or Whoosh – One is better, but you’ll never know which unless you read the article …… W6JAT 28

o Transistorized Communications Receiver – Just to show you what you can do if you really want to …… OZ7BQ 30

o Vertical Radiator – To warm the ether, not your shack …… W7OE 36

o AM Detectors – Our big technical article for the month. Guaranteed both interesting and informative …… Staff 40

o Switch from the T-17 – The fine art of surplus scavenging …… Paffenberg 51

o Propagation Forecast – What bands what time to where probably …… K2IGY 52

o Spot Frequency Operation of VHF Nets – How to herd everybody on to the same channel …… W0HKF 54

o See-Saw Bleeder – Save power and get better regulation this away …… KV4CI 56

February 1961 (#5)

o Rolling Your Own – We’re determined that you’re going to build something …… K5JKX/6 11

o Amplifier for Varicap Modulator – More for gain for the modulator in our October issue …… W7CSD 16

o World’s Simplest Phone Patch – Average construction time: five minutes …… K5JKX/6 17

o Two Meter Pip-Squeak – Complete phone rig using only three 6CX8’s …… K6BP 18

o Squawk – Guaranteed Houser. We should needle Ken into writing more like this …… W7IDF 20

o Six Meter Converter – For the car… Operates with only 12 volts on the plates …… K5JKX/6 22

o Heath Phone Patch – Heath does it again. Works fine for SSB also. Hey Heath, where’s the ads? …… K2DHA 24

o Life Insurance for Transistors – These little rascals are delicate, so watch your step …… K6EAW 26

o Beat Generation – Big technical article on SSB and CW detectors …… Staff 28

o Updating the Absorption Wavemeter – Real handy piece of test gear, and easy to knock together …… W3FQJ 34

o Interference Chaser – Easy way of getting audio break-thru out of TV sets and things …… K5JKX/6 35

o Getting the Most Out of Your Mobile Whip – How to make the best of a miserable situation: a short vertical antenna …… W4API 36

o How Modern is the VFO? – Not very …… W7OE 38

o EICO Grid Dip Oscillator – Our Associate Editor is still building up kits and liking ’em …… W3UZN 42

o Power for the Pro – Super-Pro owners, take note …… K5JKX/6 44

o Differential Switching – Using polar relays for sensitive switching- at different current levels …… Pafenberg 46

o Propagation Charts – What time to where on what bands… Probably …… K2IGY 56

March 1961 (#6)

o Translating Technical Journals – You’ll read this one to anyone who will listen …… K5JKX/6 9

o Transistorized Grid Dip Oscillator – Severing the AC umbilical cord with a transistor …… W3KET 10

o Curing Ignition Interference – Step-by-step assassination of the noisy car gremlins …… W8UCG 13

o Superregenrative Receivers – Ten rules for getting good results from a super-regen illustrated …… W5WGF 14

o Decreasing Debugging Time – How to get things back east when they go west.. In a hurry …… K5JKX/6 16

o Top Loaded Whip – Why not make your own mobile whip? …… W2IHW 18

o CW Transmission with Teletype Equipment – Simple conversion of RTTY or that hated CW identification by TT tape …… Pafenberg 20

o All Band Antenna – You’ve been waiting for someone to adapt that Log Periodic Antenna …… K5JKX/6 22

o Double Your Power Supply Voltage – Not difficult with a couple silicon rectifiers …… W4API 24

o Impedances of Surplus Equipment – Input and output impedances for most popular surplus gear ….. Pafenberg 25

o Patch Patch – Quick method of hooking your phone patch in and out of the telephone line …… K2DHA 26

o 432 MHz Transistorized Converter – Good night! How high will they go with transistors? Crystal controlled too …… W3HIX 27

o Two Meter Transmitter – Slight modification of the 6M rig from October issue of 73 …… K8NIC/5 29

o Squawk Box – Transistorized loudspeaker amplifier …… K5JKX/6 30

o Up Front – Rather thorough look at receiver front ends, our big technical article …… Staff 32

o Don’t Bug Me Dad – Our cover artist also writes. Instructions for new bug owners …… W6NKE 38

o Varicap Tuning Device – Helps the blind ham to tune up his rig… Or anyone else for that matter …… W7CSD 42

o Noise Clipper, Semiconductor Style – Tiny clipper for insertion in car radios, including transistor sets …… W2IHW 43

o Working 80 Meter Phone DX – WAC in one night when you know where to listen …… W1FRR 44

o DC Transistorized Meter Amplifier – Get amazing sensitivity out of normal meters with this amplifier …… K6EAW 46

o Motorola Test Set – Ham-banding the old Motorola mobile transceivers is popular, this helps …… W9HKA 48

o Propagation Charts for March – What time to where, when…probably …… K2IGY 54

o Names, Sines and Handles – Why “YB” calls himself “YB” …… W7OE 56

o Save, Learn, Have Fun – It really is cheaper to build than buy …… W8VVD 62

o How To File Your QSO’s – More ideas on card files for contacts …… OH2YV 68

April 1961 (#7)

o Six Meter Nuvistor Converter – Two 6CW4’s in cascade give a fearfully low noise figure …… K8BYN 9

o Power Meter – Another valuable piece of test gear for the ham shack …… K8ERV 12

o Surge Protection in Reverse – Protect your silicon diode power supply from destruction by shorting …… Pafenberg 13

o Let’s Modulate, Not Crepitate – Getting good modulation out of a Heising Modulator …… K4ZGM 14

o A New Noise Limiter – Get out the soldering iron, this one’ll go in your receiver …… K5JKX/6 16

o Calibration – Why we haven’t got it, how much we need it. And how to get it …… W4WQT 18

o Big Cannon – OK, here’s a 20M kW amplifier, now stop bothering us for that …… W6VVZ 20

o Tennessee Indians – The public relations side of taming those Indians …… K2SJN 25

o Half Wave Feedlines – One resonant feedline for several bands? Yup …… W9HOV 27

o Automation – You didn’t think we’d pass up April without one feature, did you? …… K5JKX/6 28

o Audio Boosting the Command Receivers – Turns out to be ridiculously simple once you know how …… K8HDR 30

o Pick Up the Droop – Your beam been saggy lately? …… W7OE 31

o 40 Watt Transistor Modulator – Great for mobile rigs …… KL7DLC 32

o Testing the Heath Two’er – You will no doubt be flabbergasted to find that Don likes the Two’er …… W3UZN 34

o RF Noise Suppression – Technical treatise on how to exorcise the noise demons from your car …… K2TKN 38

o 432 MHz Transistorized Converter – Part 2 (ahem) the schematic diagram …… W3HIX 40

o Take Your Pick – Big technical article: IF selectivity and the devious means used to gain it …… Staff 42

o Propagation Charts for April – What time, when, to where on what bands… Probably …… K2IGY 54

o Writing for 73 – How to get rich beyond your wildest dreams …… Staff 56

May 1961 (#8)

o G4 Zed Smith – A tri-bander without loading coils or traps, can be tuned from the shack! …… W8VVD 9

o Feedline Economy – Open-wire line just may become popular again after you read this one …… W9HOV 18

o Propagation Special Feature – Taking a look at sunspot numbers with an eye to predictions …… K2IGY 20

o Testing the KT-200 Receiver – Next month we have some of Bill Orr’s ideas for modifying this receiver …… K2DHA 22

o Ham Calendar – Just what we’ve been needing. Should go nicely with a 35 hour clock …… K4YNO 25

o Build a Vary-Volt – A piece of test equipment that is worth its weight in something or other …… W2WYM 26

o Moonstruck – Eyewitness account …… W8GUE/6 28

o Moon Chart – How to get radio signals back from the moon, reduced to a chart …… K2TKN 31

o Sideband Exciter – What with Turret construction and a simple circuit you may try this one …… W2NQS 32

o Testing the Knight GDO – Porsche-pushing ham tests Knight GDO, likes it, tells all …… W2OKU 35

o Propagation Charts – What time to where, when on what bands… Probably …… K2IGY 36

o Custom Resistors – How to move precision resistors to the value you need …… Pafenberg 38

o AC Calibration of Your VOM – We’ll be giving you more and more on precision and calibration …… Bentley 40

o Ohms by the Yard – This ties in with the precision resistors on page 38 …… K5JKX/6 41

o Blowers – What size blower you need to keep a cool rig …… W3KET 42

o How Low The Fi – Our technical article: examining the audio stages of your receiver …… Staff 44

June 1961 (#9)

o Abe Lincoln – Two meter antenna for mobile or fixed. Looks awful, works great! …… K2TKN 8

o 75M Transistorized Converter – Nice little one evening construction project …… WA6DZL 12

o Precision Capacity Measuring – Right down to a fraction of a pF …… K6BJ 14

o Propagation, Part 2 – When the sunspot null will really come and what it will be like …… K2IGY 16

o 73 Tests the M-100 Modulator – Just how good is that gate modulator put out by Electrotone? …… W4API 20

o AM Modulation Monitor – A bit complicated, but great for perfectionists …… W5SUC 24

o Modifying the KT-200 Receiver – Bill claims this is a real good deal with these few changes …… W6SAI 30

o Pandapting Adaptor, Part 1 – Moderately simple device connects your receiver to your ‘scope …… W6AOI 33

o Automatic Drive Control – Transistor device keeps you from over modulation. Clever …… W5IUR 38

o Dear Sir – On writing to manufacturers about your miseries …… K2DHA 39

o FCC Notice – Thought you’d get a kick out of this bit of antiquity …… W8ONL 41

o Do-it-Yourself IBM – Punch a few holes and get some real mileage out of a card file …… K5JKX/6 44

o Power House Pros – Part 1, all about power supplies …… Staff 51

o Propagation Chart – DX men please note that this is the most accurate forecast in print …… K2IGY 54

o The DX Hunter – Do’s and don’ts for DX hunting …… W6NKE 56

July 1961 (#10)

o A Tinker-Toy for Two – Two meter antennas made out of aluminum tubing and a Tinker-Toy set …… K8LFI 8

o Ready-Made Emergency Antenna – New, improved type mobile antenna. Really works out! …… W7CSD 12

o Two Meter Line Amplifier – Nuvistor pre-amplifier -for hottening up your two meter converter …… Bullock 14

o Amplitude Modulation Systems – Review of AM systems with special reference to an oldie you’ll like …… W7CSD 18

o Globular Calculations – How to find out how far it is from anywhere to a anywhere, great circle route …… K5RPB 26

o An S-Meter for Your Sixer – Or your Tenner… Or your Tower. What? You don’t have one? Heath advertises …… K5VMC 28

o VLF – Very Low Frequencies – A converter for the 10-100 kHz band …… W3QA 29

o Little NIC Six Meter Converter – Quite wee transistorized converter. You’ll like. Real quick project for you …… K8NIC/5 31

o Panadapting Adaptor, Part 1! – Construction and alignment details …… W6AOI 33

o Plate Modulate Your DX-40 – How to hook in an external modulator or more output from the DX-40 …… K6UGT 39

o Socket for the 4-1000A – The tubes are available surplus, but the sockets ouch! Here’s an answer …… W4API 41

o Frequency Measurement – Measuring frequency with simple equipment …… Henry 42

o From My Side of the Counter – Confession from the heart of Radio Row in New York City …… W2BNW 44

o Transistor Biasing Simplified – The problem… The solution …… K6EAW 45

o Powerhouse Pros, Part 2 – Designing a power supply instead of throwing it together …… Staff 48

o Propagation Chart – What bands when, to where …… K2IGY 56

o Band Edge Marker – 3.5 MHz oscillator gives band edge marker for all ham hands …… K1NFE 58

o Transformer Action Demonstrator – Very handy for schools and theory classes ……W8KTJ 64

August 1961 (#11)

o Frequency Deviation Meter – Another little garget to build from the brain of one of the top hams of all time …… K6BJ 6

o Noise Limiter – For the car. Transistorized, printed circuited, and the board is available …… W3BUL 8

o SSB vs. AM – Year-by-year count of band occupancy by SSB and AM. (SSB is winning) …… K0AXY 12

o Square Antenna – The Bi-Square is easy to build and works out beautifully …… W8GUE/6 14

o The Drake Receiver – 73 rushes you info out the new Drake 2B. Amazing receiver, as you will see …… Merritt 18

o RTTY Converter – Transistorized, printed circuit. Board available. Best yet …… W5SFT 24

o Two Meter Nuvistor – Cascode Converter – If one Nuvistor is good, why obviously two are better. Obviously …… WA2INM 28

o Versatile Control Techniques – Using those concentric TV controls in your ham rigs and receivers …… W4WKM 32

o Impedance Bridge – A whopper construction article. Details on building “professional” equipment …… K6CRT 33

o Propagation, Part 3 – Antenna height and angle of radiation importance during the coming minimum …… K2IGY 42

o Simple as A-B-C – Clarification (?) of the classes of amplifiers …… K5JKX/6 44

o The Romance of Dixie Dan – One of the better ham poems from our Renaissance man …… W6NKE 46

o Propagation Charts for August – What time to where, when, on what bands… Even inside the US… maybe …… K2IGY 48

o Four Kinds of Ham – A general discussion of stuff you’ve read before. The Golden Rule again …… K5JKX/6 50

o Mobile Power Converters – Transistor supply using filament transformers. Very clever… And cheap …… W2BXE 54

o 73 Tests the Finney 6 & 2 Meter Beam – Interesting invention. You’ll want one if you read. Beware …… W3UZN 56

o New Look At Old Ideas About Antennas – The old timers really knew what they were doing… We can learn a lot …… K5JKX/6

o Hiss, Sputter, or Crash – Different types of noise and what to do about each of them …… K5JKX/6 66

o Portable kW Transistor XMTR – Newly released (early April) transistor makes shoe box kW simple …… K2PMM 72

September 1961 (#12)

o Silicon Rectifiers – How not to pop ’em, a lesson for hams and engineers alike …… W1OOP 6

o Tuning Bypass Condensers – How to make a bypass bypass at the VHF’s …… K5JKX/6 8

o Simplescope – Perchance the title may give this one away. You need one. Build it …… W0OPA 10

o VFO Chirp vs. 6AU6 – Several VFO’s use a 6AU6. Lousy choice, try a 6AH6 instead and see …… K3KMO 20

o Console – If you’re going to be obstinate enough not to buy an Alden Hambench, then build this …… W9HKA 22

o Class B Modulators – We’ll print anything …… WA2INM 28

o Eye for Resonance – How confounded simple can a GDO get? This is how simple, that’s how …… K6EAW 30

o Break-In A la Transwitch – Complete station control unit, transistorized …… W7AXJ 33

o Environmental Testing – Be nice to surplus gear, it has been through a lot …… W2WYM 36

o Band Edge Marker – A 3.5 MHz crystal calibrates your receiver on all ham bands …… WA2HZR 37

o Tell The World – Ham radio needs publicity, here’s how to go about it …… K5JKX/6 39

o Zero Shift Keying – A new idea, presented first in 73. You’ll be hearing more about this …… K5JKX/6 42

o Cross-Polarized Beam – A new approach to diversity transmission and reception …… K6CT 48

o Crystal Oscillators – This is the Big Technical article. You’ll find interesting …… Staff 50

o Propagation Charts …… K2IGY 64

o Why a 73 Page Magazine Is Impossible – or: further developments of the kW Transistor Transmitter …… K2PMM 72

October 1961 (#13)

o Six Meter Linear Amplifier – 90 watts AM, 360 watts PEP SSB, 2-1/2 watts drive to pair 7378s …… W2LPC 6

o Simple High Stability, VFO – 5763 osc., 5763 buffer. Colpitts circuit …… W2RWJ 14

o 73 Tests the Central 200V – It works …… Staff 18

o CQ de 73 – Converting the ARA-26 surplus keyer for ham work. Inexpensive, and lots of fun …… W2WKM 22

o Like New Mixer Circuit – New way to improve sensitivity and stability of your receiver …… Staff 32

o Two Meters the Easy Way – The MRT-90 packset, available surplus, makes a terrific two meter transceiver …… W2WKM 36

o Useful Accessory for the Shack – You can’t get along without this wavemeter/field strength meter/monitor …… W2WXH/6 38

o Inexpensive Vertical – Easy to put up, tunes 80-40-15 meters, and works out fine …… W6NKE 40

o Dual Diversity Beam – This, we predict, will be a very popular DX’ing antenna …… K6CT 42

o VFO Circuits – Good and bad features of all known circuits. Our big technical article …… Staff 46

o Obtaining That DX License – Gus divulges his secret tactics which will soon give him a reverse DXCC …… W4BPD 58

o Sequential Electronic Switch – Key VFO and final screens in sequence for clickless spark-free keying …… KV4CI 62

o Propagation Charts – What time to where, on what band probably. For world and U.S. short path …… K2IGY 64

o Send-Receive Ground Switch – Antenna switch for simple ham stations. Also keeps lightning out …… Pyle 66

o Maximum Utilization from Variacs – Very useful devices. They’re available surplus if you hunt around. Even new they’re worth it …… W4CAG 72

o Construction Do’s and Don’ts – Rules of the game. Read please …… K5JKX/6 76

o Emcar 6 – Why you should get a Porsche to go with your mobile rig …… W3JXT 82

o Little Thief – Li’l one tube CW rig powered from your receiver …… W3FQJ 84

November 1961 (#14)

o Linear for Sunspot Lows – Do-it-yourself F2 layer. A kilowatt six meter linear for SSB …… K6QQN & W6QMN 6

o Transistor Mike Pre-Amplifier – Outboard pre-amp to make up for audio deficiencies of your rig …… K6PZT 10

o Transistorized RTTY Audio Oscillator – Printed circuit, generates mark and space tones for RTTY …… W5SFT 12

o Have You Met These Characters – TVI brings out some remarkable characters …… K3HNP 15

o TV Tuner Receiver – The standard coil tuner makes a wonderful basis for a fine inexpensive homemade receiver …… W0RQF 16

o Solid Power – What diodes to use for what voltage power supply …… K5JKX/6 20

o Phasing For Audio Selectivity – Simple gadget makes the 80M Novice band sound almost vacant …… K5JKX/6 24

o Quick and Simple Mobile Rig – CB is good for something! Convert those CB rigs to 6-10-15-20M featured here …… K5JKX/6 30

o Single-Sideband Transceiver – All band, 200 watt PEP. VOX, etc. Everything you could want in a transceiver …… W6BUV 33

o A Quad for Six – The quad works excellently on six meters too, and is awfully easy to build …… W3TBF/0 48

o Evolution of Antennas – Short history of the early ideas in antenna design and how they grew …… W7OE 50

o Propagation Charts for November – What time, to where, when, on what bands… Maybe. Including short-haul inter-U.S. …… K2IGY 58

o Two Uses for a Birdie – 1) Super accurate alignment of IFs. 2) Substitute for xtal standard for bandsetting …… K5JKX/6 62

o Horn Antennas – 1296 MHz requires an entirely different approach to antennas and feedlines …… T12NA 64

o Audio Hither & Thither – Connecting the tape recorder and phone patch into your rig and receiver …… W3KBM 66

o Rewinding Relays and Transformers – Rewinding for different voltages or in case of failure under the smoke test …… K0RRM 70

o Surplus Utilization – General discussion: where to buy, what to buy, and how to best use it after you have it …… W4WKM 72

o Testing the Gonset Communicator TV – Thorough rundown of this popular piece of gear …… W4API 80

December 1961 (#15)

o Write Your Congressman – Making a pest out of yourself in a big way …… K7HDB 6

o Ten Meter Midget Rig …… K5JKX/6 8

o Versatilizing Meters …… W2WYM 12

o Regenative Detectors …… W5WGF 16

o Another Two Meter Conversion – Conversion of the R-77/ARC-3 Receiver provides continuous coverage from 100 to 156 mc, without undue sacrifice of 2 meter bandspread …… W4WKM 22

o Economical Custom Construction – Sturdy, professional appearing custom equipment housing made from readily available materials, using woodworking tools and techniques …… W4WKM 33

o Avoid Precise Inaccuracy …… K5JKX/6 37

o Wayout Measurements – with close at hand equipment or you to can be standard …… Henry 41

o On Soldering …… K3HNP 43

o Two Meter Transceiver …… WA2INM 45

o Capacitor Substitution Box …… W6AOI 50

o Antenna – Simple, inexpensive, small, quick …… K5JKX/6 52

o 73 Tests the Knight R-55 Receiver …… W3UZN 58

o RTTY in the United Kingdom …… G2UK 62

o Propagation Charts …… K2IGY 64

o 73 Reviews the QX-535 Receiver …… K3KMO 66

1962

January 1962 (#16)

o Kilowatt Sideband Transceiver – Single band rig, but amazingly compact …… W6JAT 8

o Rotate That Tower – Instead of just the antenna …… K2LZF 14

o 73 Tests the Alco GDO – It works fine …… W4WKM 18

o Rotors – Why TV rotors usually fail as beam twirlers …… K2TKN 20

o Speakers for Command Sets – Making use of midget speakers for built-in sound on the ARC-5 receivers …… W4WKM 24

o Chase That Dampness – Cure the number one blight to good radio equipment …… K4ZGM 28

o Transistor Analyzer – Sure cure for unmarked transistors. Also checks out marked ones …… W6EUM 32

o Simplified Break-In – As applied to the Heath Apache …… W4HBO/2 36

o Amateur Moonbounce on 1296 – More discuss ion, not much action yet …… W6MMU 40

o Stabilizing Mobile Oscillators – Zener diodes again. Works …… W6FIR 46

o Hanky Box – BC receiver, 45 watt transmitter and converter combo for the car …… W3GSC 50

o Eye-Catching QSLs – What kind of bum doesn’t have any QSL cards? Shame! …… W2AAA 54

o Investigating the 2NI69A – Like to have some fun? Give this a try …… K6BIJ 57

o Propagation Charts – What time to where, when on what bands, maybe. Sunspot chart …… K2IGY 58

o QRN – How to track down noise sources. Explicit …… WA6IVM 62

o Save Your Screen Grids – For class-C amplifiers. No relays involved …… W9IHT 68

o Ham TV – Get on the air for under $50! This makes you read our new book …… W0KYQ 72

o Calibrating the BC-221 – Uncalibrated 221’s are a lot cheaper and aren’t difficult to calibrate …… Henry 78

o A Sensible Attitude – There is such a thing as too much, even with ham radio. For some people …… K2ENU 80

o Pole Pig Picking – There’s a lot of meat in those bones. How to find and choose a pole transformer …… K2LZF 86

February 1962 (#17)

o V-Loop Beam – Angie claims this thing works out. Looks easy to build, give it a try …… W2NQS 8

o Final Tanks – It’s about time someone did a through job on this subject. Technical article …… W6JAT 12

o Converting 6 Volt Radios to 12 Volts – Basic conversion for car radios, Motorola, and link transceivers, etc …… W4OHM 20

o RX for the RTTY Bug – Nice TT converter, complete with scope …… W0RQF 26

o A Page from a Designer’s Notebook – Heising modulator design …… W5SUC 28

o Sideband the Easy Way – Using the Wes Schum 10A exciter to drive almost anything you have on hand …… W9EGQ 30

o The BC221 as an Accurate Audio Generator – How to generate precise audio frequencies with the 221 …… W0OKH 35

o Which Way is Up? – Proof positive: we’ll print anything …… K6EAW 36

o Silicon Rectifiers, Continued – By the time we through you will be au expert on silicon diodes …… WA6QFD 38

o 73 Tests the LW-51 – And makes L-W Labs very, very happy …… W3UZN 42

o Surplus Frequency Synthesizer – Incredible surplus buy for people who want to get their feet wet up to here in hamming …… W4WKM 44

o Convert the URC-4 – Cute little surplus Handi-Talkie which hits 2M and 220 MHz …… K7ILP 50

o Continuity and Power Transformer Checker – This little test set is really invaluable around the shack …… W5EHC 52

o Modifications of the HE-35 – No matter how good a rig is there is always some joker who wants to change it …… WA2INM 54

o Dress it Up – It doesn’t take much extra effort to make it look nice. Here’s some ideas …… W4WKM 59

o PNP-NPN CPO – We have to print a code practice oscillator now and then, don’t we? …… K6EAW 62

o 32 on 2 – Sneaky way to work two directions at once …… K8ERV 68

o Propagation Charts – When the bands will open to where, probably …… K2IGY 72

o Economical Antenna Tower – 30 foot tilt-over which home-brews for about 0.012 kilobucks …… 74

March 1962 (#18)

o Printed Circuit VFO – Extreme stability and simplicity of construction in this 50 MHz VFO may bug you to build …… W5UB 6

o Regulated Bias Supply – Great for linears, develops -20 to -120V @ 0-70 mA and presents only 6 ohms to grid …… W5IUR 12

o Check Transistors with an Ohmmeter – Here is the simplest test for transistors yet, and it’s safe and works …… W9QKC 14

o Radar Detector – All you 2,500 MHz SWL’s (UNFL’s?) will appreciate this mobile receiver …… W6JAT 18

o Ham TV Survey – Ham TV is sprouting up all over. This will bring you up to date on its spread ….. W0KYQ 22

o Blind Fasteners Aid Construction – Using explosive rivets to hold things together …… W4WKM 24

o Half-Wave Transmission Line – This gets around a lot of your antenna problems …… W2KPE 26

o 50 MHz, No Crossmodulation – Six meter converter designed for high signal density areas …… K6RNQ 28

o Page from a Designer’s Notebook – Transistorized carbon mike pre-amps …… W5SUC 30

o Brew or Buy? – Brew …… W4KOC 32

o 500 Watt Linear Amplifier – Not 811A’s again? Well, er… They’re cheap! …… W0RQF 33

o The Strings the Thing – We’ll print anything. What a kookie magazine! …… W7CSD 35

o Nostalgic V-Beam – Think piece …… W2RWJ 37

o The Tiny Terminator – 50 ohm 20 watt dummy load built in Canada Dry Cola can. Too bad if this is not your brand …… K5JKX/6 38

o Old Vikings Never Die – Little hints to improve the Viking rigs. Might work on the DX-100 too …… W4AWM 40

o 73 Tests the Knight T-60 Transmitter – Here’s another rig we can recommend. 80-6 meters, 60 watts, CW-AM …… W4WKM 42

o Antenna Protection and Switching Unit – Built outdoors, where it should be. Keeps lightening out …… W5EHC 46

o Is Marconi Like Spaghetti, Daddy? – Saga of the visiting amateurs, as reported from England …… Margolis 50

o Faithful, Long-lasting, Signal Booster – It also works well and is simple to build …… W9ZDN 52

o Evolution of the Bug – Historical aspects of this oft used, little mustered device …… W3WRE 54

o Cure that Angry Band – Audio’s selectivity with the FL-8 surplus audio filter …… W4THU 57

o BCI in Your QSO?- Keeping BC stations out of your receiver …… K2DHA 58

o 73 Tests the Viking Ranger II – Johnsen has nicely updated their most popular rig …… W4API 61

o High-Level Mixer – You can mix the full output of your exciter to any band you desire …… W5EHC 66

o Zero-Beatnick – More fun with transistors …… K6BIJ 64

o Modulation – Our big technical article… This will make you an expert …… Staff 70

o Propagation Charts …… K2IGY 74

April 1962 (#19)

o Six Meter SSB Exciter/Transmitter – Since sideband is going to be the big thing on 6, you’d better start soldering …… W5JSN/K8NIC 6

o Field Strength Meter for Ten and Six – Using a midget loaded whip to improve the sensitivity of your F.S.M …… W3YZC 9

o Forty Meter ZL Special – As the sunspots go, so go the higher bands. Try this 40M amplifier …… W4AXE 10

o 73 Tests the Poly-Comm 62B – Pollytronics has really done it: Six and two in one li’l package …… W4WKM 12

o Ham Radio in Finland – On the spot reporting …… OH2YV 18

o Dot Maker – Great for people who are short on dots …… W6VAT 20

o An Accurate S-Meter – “You’re 80 over nine here, OM!” …… K5JKX/6 22

o LCU’S Michigan Long Wire – Interesting 80M antenna. Somebody’s always thinking up something new …… W8LCU 24

o Station Control Unit – Contains speaker, transistorized electronic key, break-in circuit, etc …… W7AXJ 28

o Universal Antenna – Works on all bands from 160M to 10M and in between too …… W6AOI 30

o One Tube Vox – Now you, too, can learn to talk steadily to keep the rig on the air …… K8AOE 37

o Quartz Crystal Checking – Wee gadget to check frequency and activity of your quartz chips …… W0CGA 38

o Before the Breadboard – Basics of circuit design, simplified …… Staff 40

o Transistorized Cathode Modulator – Kilowatt transistorized modulator. Let us know if it works …… K2STV 46

o AGC for the Swan Transceiver – A small improvement for this terrific little SSB transceiver …… K6SHC 51

o 160 Meter Mickey Mouse – 18 watt for for 160M. Let’s get more activity up there. And more frequencies …… K9PAL 52

o Improve Weak Signal RTTY Reception – We may eventually run a new TT converter every month. This one looks good …… W7CJB 54

o Pre-Amp Curve Shaping – Getting a lot more punch out of the crystal mike pre-amp …… W5SOT 56

o BC453 Conversion – Makes a fine and inexpensive signal slicer …… K6JHJ 58

o Linear Scope Monitor – Linears are hard to adjust sometimes, this sure helps …… W0MWJ 62

o FM to AM – Quick conversion for surplus FM gear …… W4WKM 64

o The Band Warmer – Another good idea for use of the KY-65/ARA-26 surplus keyer unit …… W0RQF 66

o Propagation Charts …… K2IGY 68

o Precision Measurement for the Amateur – Hints of getting lab gear and reconditioning it …… W4WKM 72

o W2SKE/MM (Mobile Motel) – Hard learned ideas on fast setting up for travelers …… W2SKE 78

o 73 Tests the Heathkit IM-10 VTVM – Nice …… W3UZN 81

May 1962 (#20)

o Two Meter Tank and Coupler – Part 1 on a marvelous two meter rig …… W9DUT 6

o Simple Antenna Mast – 22 feet for $4.00 …… K3LTB/5 8

o 6M Double-Sideband AM Transmitter – Uses circuit board. Whole bunch of fellows are getting on with this simple rig …… K8AOE, K8MSB 10

o Two’er Modifications – AC/DC power supply, new osc. circuit. Applicable to 10’er & 6’er too …… K2ORY 16

o 73 Tests the Telco 201 Converter – This six meter nuvistor converter is amazing …… WA2INM 18

o ARC-5 VHF – Inexpensive surplus rig auto-tunes to 6, 2, and 1-1/4 meters …… WA2FHC 20

o 73 Tests the Clegg 99’er – Everybody probably already knows that this rig is great …… WA2HVK 22

o 7077 Two Meter Converter – 73 is first again with an application of this new ceramic tube …… WA6EWV 24

o Four Layer Devices – Keeping you abreast of fast moving developments in solid state gadgets …… K4CPR 30

o A New Broom – Sweep generator for aligning filters and stuff …… K6JHJ 32

o All Band Linear – Using four EL-34’s (those hi-fi tubes) 300 watts …… W9CJS 34

o FSK Without Relays – Diode keying unit replaces polar relays for the RTTY group …… W5QJR 38

o Do Hams Have Fun? – You’ll have fun with this one …… W4WQT 40

o Receiver Prices – Original prices and dates on old receivers. Nostalgia, Inflation! …… W0HKF 46

o The 85 B14 Receiver – This receiver should keep you out of trouble for this month …… Bernard 50

o Vacuum Capacitor Traps – Surplus vacuum condenser units for multi-band traps …… W4API 60

o Budget VTVM – Easy to build gadget. Get out the soldering iron …… W7INX 62

o Notes on Silicon Rectifiers – We’ll have to start a silicon rectifier department soon …… K5IPY 66

o 73 Tests the Heath HA-10 Linear – Another Heath rig proves out FB …… K3KMO 68

o Complete Fire Insurance – Or, how to keep your transistors out of the garbage …… W6VAT 70

o 73 Tests the Knight RF Z Bridge and Pocket VOM – For $5.85 and $9.95 you sure don’t go wrong …… WA2INM 74

o 73 Tests the Hallicrafters HT-40K – New kit from Hallicrafters …… W3UZN 76

o Propagation Charts – What time to where, when, on what band… Probably …… K2IGY 78

o RF Q Multiplier – More fun with the 2N169A …… K6BIJ 80

o High Power Antenna Switching Unit – Using one of the ART-13 antenna switching units to good effect …… W4WKM 82

o A Cheap, Simple, Plate Modulator – The surplus Command Set MD-7 is cheap and works fine …… WA2PGX 86

o Keep Your Key from Crawling – Without bolting it to the table …… Pyle 89

June 1962 (#21)

o Echo Deluxe – Two meter transmitter with a commercial appearance …… W9DUT 6

o The Friendly Frequency – 52.525 MHz …… W9YCB 14

o Six and Two Meter Nuvistor Pre-Amplifiers – Pre-amplifiers are easier to build than converters …… K9ARA 16

o Milliwatt RF Power Measurements – For those low power transistor rigs and transceivers …… K4UWX 18

o Noise Limiter for the NC-300 – Rate-of-change type limiter …… W8IQN 20

o Six Meter Transistor Converter – Runs directly from your 12 volt system …… W3HIX 22

o Simple Tuner for Long Waves – Explore these long-forgotten frequencies …… K0VQY 24

o A kW/SWR Power Meter – You can leave it in the line if you want …… W6VAT 26

o Selectivity Plus – Putting a mechanical filter in the homebrew receiver …… W9OFD 30

o Overload Relay – Beats fuses all hollow …… W0OPA 34

o 73 Cent Noise Clipper – A good price. Connects between receiver and headphones …… K0WML 36

o Tape Recorder on SSB – Use tape loops for those long, long CQ’s …… KZ5SW 38

o Phase Inversion – Hi-Fi on the hambands? Forsooth! …… W4JKL 40

o Electronic Keyer – Cheap, simple and effective. Get cracking! …… K3KMO 42

o Pop Box – Now you can generate your own ignition interference. Make friends with the neighbors …… K8ERV 44

o Selected Circuits – Looking at the RF Communications Assoc. sideband transceiver …… W4WKM 46

o Diathermy – If it isn’t too late you might grab any available units …… W4WKM 50

o 160 Meter Converter – Lots doing down on 160, but maybe your receiver doesn’t cover the band …… W1OOP 52

o Crystal Control for the DSB-100 – For nets, Novices. etc …… W2BZN 54

o Break-In CW with the 20-A – Or any other imitation of the 20-A …… K2ISP 58

o 73 Tests the Knight Kit Code Practice Oscillator – Inexpensive and works fine …… WA2INM 56

o Seneca Modulation and Keying – Couple of modifications for Seneca owners …… WA2GCF 60

o How is Your Ham Image? – Martin makes some good points …… K7NZA 62

o Calibrate Your Antenna System – Getting some mileage out of your SWR meter …… K2DHA 64

o The Perfect Setup – Some improvements on overall station setup …… K0OFB/2 74

o A Review of the NC-190 and the NC-155 – They’re OK …… Staff 69

o Propagation Charts – Goodbye ten meters …… K2IGY 78

o A Crystal Diode Noise Generator – Exceptionally handy for tuning up receivers. Builds in minutes …… W5TEV 80

o Receivership – Ray has had his problems …… W2TAM 82

o Values, Etc. – Some basic discussion on parts values. Read …… K5JKX 86

July 1962 (#22)

o The 420 MHz Band – Inside dope on this interesting band by real expert …… W4HHK 6

o Six Meter Nuvistor Converter – Designed to plug in Drake receiver, but will work with anything …… K8NIC/5 12

o VHF Construction – Heed well this article and you may save yourself a lot of misery …… WA2INM 14

o The Eico 720 on Six Meters – You just add a separate pi-net coupler and there you are …… WA2KTJ 18

o Finding True North – Handy if you are lost in the woods …… KH6BW 20

o Modifying the HE-35 – Revisited …… WA2INM 22

o All Band Nuvistor Pre-Selector – This little gadget makes quite a difference …… K8AOE 22

o Transistorize that Meter – Making VTVMs out of those VOMs …… Henry 26

o Rambunctious Radiations – It’s the location that counts, not the antenna …… W4KOC 30

o The Windom – Resurrected and placed carefully on a pedestal …… W4WXY 34

o The Whistler – Or how to use an island as an antenna …… W2SKE 38

o Power Booster – Replace that 6146 with a 6DQ5 and watch the signal increase …… K5JKX 42

o The Engineer and the Transistor Radio – Humor …… Rodgers 46

o Vermin Traps and Dragon Eggs – How to keep the bugs out when you are building that rig …… W2TBZ 50

o Selectivity Plus – 105 Hz selectivity with a simple audio filter …… W6EUM 58

o Propagation Charts – What time to where, in all probability …… K2IGY 62

o An Old Friend in a New Suit – The ARC-5 rides again …… W7CSD 64

o Dear Friend – Keeping those Indians on the reservation …… K0OFB 66

August 1962 (#23)

o Coaxial Line UHF Pre-Amp – 420 MHz Nuvtstor pre-amplifier, pretty important at these frequencies …… W9SEK 6

o Improving the CC50 – Blow the dust off and bring it up to date …… WA2INM 7

o VHF with RDR – Navy surplus conversion. Covers 220 MHz band rather well …… W2VCG, W2TAM 8

o Six Meter Coaxial Antenna – Not for DX’ing, but it is simple, inexpensive and omnidirectional …… W6KVO 12

o The UNI – Code practice oscillator …… W2VSP 14

o More on Crystal Oscillators – Part 2 of the crystal oscillator article in September 1961 …… W6LWE 18

o Of RTTY and Transistors – Attention all RTTY bugs …… W3TUZ 22

o Crystal Ball – Measures crystal activity overtone activity, frequency spotting, etc …… K5JKX 28

o Quad Mode Monitor – An ultimate sort of receiver …… W9DUT 31

o Mobile Scope – Why not? …… K9DYS 36

o More Fun from a Receiver – General coveraging ham-band-only receivers …… W2LLZ 38

o TT-180 Five-Bander – Transmitter …… W2RWJ 42

o Instantaneous Dissipator Tube – Medium power final amplifier with unusual power supply and interesting voltage regulator …… W7CSD 49

o Management Terminology – Ha …… W4WKM 54

o CW Man’s Monitor – One 6C4 and a simple circuit …… W6EUM 56

o T-60 Modifications – Break-in and push-to-talk for the Knight T-60 …… W4WKM 58

o Panel Markings – Professionalizing homebrew gear …… K5JKX 62

o Potato Face – Fiction …… Margolis 66

o Mounting the BC-625 – The 522 will never die …… WA5MLI 74

o Surplus Coaxial Switch – Motor driven …… W4WKM 76

September 1962 (#24)

o Synchronous Detection – A breakthrough article reading signals 40 dB down in the noise …… K2TKN 6

o 73 Tests the Maverick Filter – Really picks off those six meter Indians …… WA2INM 10

o What’s a Vidicon? – It is the amateur’s answer to live TV …… W2RWJ 12

o Twin-Cavity Two Meter Filter – It’s what’s up front that counts. A thinking man’s filter …… W3TUZ 18

o Treasures From the Junk Yard – Car radios can be easily converted to 110 VAC …… W5VOH 22

o Low-Current, Sliding Bias, Modulator – 40 watt transistor modulator …… VE7QL 24

o How’s My What? – Ken has a good answer for our June article on “How’s Your Ham Image?” …… W7IDF 28

o Western Ham – Sense of humor test. 10 points if tears come to your eyes …… Rodgers 32

o Improved Grounded Grid Operation – How to make your exciter load into the final about the same as into an antenna …… W6JAT 34

o Rate-of-Change Limiter Revisited – Using crystal diodes in the noise limiter from the April 1961 issue of 73 …… K5JKX 36

o Quad Mode Monitor – Part 2. All band supermagnificent home built receiver …… W9DUT 42

o 73 Tests the Waters Universal Hybrid Coupler – A very compelling article. You’ll probably be coupling after you read this …… K2CM 54

o Propagation Charts – W6AM complained that we left these out last month. Bet you never noticed …… K2IGY 60

o Full Break-In Keying – You can get along without it, but there is nothing like it …… W4MLE 64

o The Frequency Response Argument – It’s what’s on top that counts. Keep the highs high …… W5SUC 68

o Keying Surplus Transmitters – Getting some code speed out of old relay controlled surplus rigs …… W4WKM 76

October 1962 (#25)

o VHF’ing with the Standard Coil Tuner – The cheapest really hot VHF converter yet published …… W4WKM 6

o 50 Watts on 50 MHz in 50 Seconds – Starting with the Heath DX-20 …… K9STH 10

o 20 Meter SSB Exciter – Completely transistorized to boot …… W5FRC 12

o Four Layer Semi-conductors – Self completing automatic bug and other adventures of these new gadgets …… K8AOE 16

o Improved Base Clipper – Eliminates all signals below a given adjustable amplitude …… Ives 20

o This May be the Cause of Your Chirp – If you’ve been chirpy lately …… K7MSL 22

o 73 Tries the Irving Preverter – Two and six meter pre-amplifier. Boyoboyoboy! …… Staff 24

o Tone Modulated Crystal Standard – Standardizes you up to 225 MHz and you don’t need a BFO either …… W9DUT 26

o Transmitter Design – Big technical article for the month. Passably interesting or better …… K5JKX 30

o Are You Being Lied To, OM? – SWR bridges can be big liars …… KZ5SW 42

o How to Scrounge a Deluxe Junkbox – Without having to work for a parts distributor …… K9AAI 44

o The Local Net – 29,560 kHz. Many other groups are using 52.525 MHz FM, etc …… W4MLE 50

o Modernizing the VF-1 – Stabilizing this fleet-footed sprinter …… W2RHD 54

o Mobile Whip – Har! …… Rodgers 60

o Control Circuit for RTTY – Why use ten switches when one will do? Laziness, that’s why …… W0PHY 62

o Sirnplescope, Part 2 – Part 1 was back in September 1961. Great gadget …… K8AOE 63

o V-Beam – They stand up to the gales remarkably well …… G3BID 64

o Metailic Rectifier Circuitry – Sort of a supplement to our article on power supplies in July ’61 …… K9MYZ 66

o Imagination – A call for the trial of new ideas …… W4API 70

o On the Use of the Amateur Bands – Someone is always proposing a new division of the bands …… KZ5SW 72

o The AN/ARC-2 – Stop writing in for this conversion, here it is …… W4WKM 82

o FM Rejecting Stub – In case you don’t like FM birdies in your receiver …… W8HOA 90

o Converting the BC-652 – Inexpensive 2-6 MHz surplus receiver …… W1MEG 92

November 1962 (#26)

o Solid State 1296 MHz Converter – Transistors on 1296? Good grief, what next? Sensitive too! …… W3HIX 6

o Deluxe Your Transceiver – The Lafayette HE-35A, for example. S-meter, spotting switch, etc …… K6UGT 10

o Junction Cheks – Quick way of making sure the junctions are still good onyour transistors …… K2OPI 16

o The Continental Six – Six meters SSB with this low-cost high performance transmitting converter …… W1PYM 18

o Build Your Own Mobile Mike – Transistorized mic pre-amplifier for more mobile punch …… K5JKX 20

o 73 Tests the Gonset 220 MHz Communicator – Commercial equipment comes to the 220 MHz band! …… W4API 24

o In Defense of the Operator – A weak defense is better than no defense at all …… W0OBF/2 26

o Catch All – Ha, ha …… Rodgers 28

o Of RTTY and Filters – Book length feature …… W3TUZ 32

o Premium Tube Replacement Guide – Equating all those four numbered tubes to better known tube numbers …… W4WKM 46

o 73 Tests the Lafayette Starflite – Inexpensive all-band rig. Eighty dollars, ninety watts …… W1MEL 50

o Complicating the Simplescope – Modifications and improvements of the Sept. 1961 article …… W0OPA 52

o 73 Tests the Heath IM-30 – Transistor analyzer kit for $54.88 really does a good job …… W5SJN 58

o Simple Squelch – Squelching that communications receiver used with a VHF converter …… K4UWX 60

o Good Old Charlie Queen – Can this be fiction? …… W1QUE 64

o Spotting Simplified – Getting those “spot” switches to really do the whole job …… W4MLE 66

o Coax vs. Open Line – Coax doesn’t fare so well, we’ll warn you …… W9HOV 67

o Inverted Vee-Beam – Works out like a bandit. Replace guy wires with a very effective antenna …… W8DLU 70

o Choke Evaluator – Test equipment for the shack, not the car …… Ives 72

o Those Different Diodes – Big technical article. Rouser …… Staff 80

o A Good Five Cent QSO – George fights a losing battle with the lids …… W4MLE 90

December 1962 (#27)

o Two Meter VFO – Very stable and uses one tube. Dandy bandspread …… W6TKA 6

o Modifying the Sixer – For a 50% power increase …… K4ZQQ 9

o Modifying the HE-45 – Improving the modulation & power output meter for this nice rig …… WA2INM 10

o The Irving Hiverter 50 – Six meter SSB converter tested at HQ by W1MEL. Works …… Staff 12

o Alternators – With mobile SSB coming at us in a rush we will be needing these …… K8ERV 16

o 432 MHz Antenna Tuner – Pictorial article …… W1TQZ 18

o Auto Analyzer – Not very hammy. Tachometer, dwell angle meter, battery VM, temp. indicator …… Henry 20

o Coaxial Baluns – Open wire is the lowest loss, but how do we get from coax to open line? …… WA2INM 26

o Selectivity Plus – The CW man sometimes goes to great lengths for selectivity …… W6EUM 28

o The Heath HR-20 – 73 tests the Heath mobile receiver …… W4WKM 36

o AM Oscilloscope Patterns – You’ve been wondering what your scope was trying to tell you? …… W0OPA 44

o Briefcase Twins – Complete portable CW station …… W2TBZ 50

o The Heath Warrior – Full kilowatt linear amplifier by Heath …… W6EUM 60

o Joe’s Other World – Fiction …… Margolis 66

o Transistorized Squelch – Squelch is very handy and this circuit is so simple you have no excuse …… W1TUW 74

o The Waters Q-Notch Filter – For the KWM and 758 Collins owners that want something better …… K2CM 74

o The R-45/ARR-7 – This is practically a SX-28. Surplus conversion …… W5UOZ 86

o Constant Voltage Power Supply – A real gem is available in some of those old TV sets …… W4WKM 92

1963

January 1963 (#28)

o Nu 1-1/4 Meter Converter – Three 6CW4 nuvistors in a sensitive 220 MHz converter …… WA2INM 6

o RF Controlled Break-In – Automatic send-receive controlled by the key …… W8MQW 8

o NTSC Signal for Ham TV – Ham-TV’ers will want to read this one …… K2HQY 10

o 73 Tests the WRL Tech-ceiver – Works fine. Six meter transceiver …… Staff 18

o Linear Amplifier – 3-1000Z kilowatt …… W6JAT 20

o 73 Reviews the PMR-8 – Fine little mobile receiver by Elmac …… W6FNG 26

o Transistorized Audio Frequency Meter – No test bench is complete with a good audio freq meter, is it? …… W1TUW 28

o Tale of a Dark Night – Introduction to the author …… W3MFA 30

o SSB or AM – Solution: run both …… G3BID 32

o Transistorized Mike Adaptor – Pep up weak surplus mikes with this one …… W4WKM 34

o Six Band Ground Plane – James claims that it works out just fine …… W6WAW 36

o 75 Meter Transverter – Good mobile band, simple rig and converter for car radio …… WA6FPG 40

o 73 Reviews the Knight-Kit T-150 – 80-6M, 150 watts, CW-phone, out of Allied in Chicago …… K9PWT 48

o Scopes – Technical article for this issue. Read please …… Staff 52

o The Heath Cantenna – 73 gets out the can opener …… W3UZN 62

February 1963 (#29)

o 6M SSB – Pros, cons, and the gear to do it with …… W2NSD 10

o 432 MHz Gallon – Legal now …… K2TKN 14

o Mountain Topping for Blood – An old pro doesn’t answer ones …… K1CLL 20

o Simplified 8JK Beams – The twin-three really puts out a signal. Really …… W6WAW 24

o Double Sideband – DSB has some decided advantages, you might as well read this and face it …… W3PHL 28

o Crystal Oscillator – How to get the stability required for moonbounce on 1296. It ain’t easy …… K2TKN 27

o Stutterless VOX – Help-p-p-ps to p-p-p-rev-v-vent sp-p-p-peach imp-p-p-pediments …… W0OPA 37

o Ballast for the NC-300 – Dang things are always blowing out. Transistorized replacement …… K6GVB 38

o Modules – Pep talk on ham modulizing …… W5WGF 40

o The RK-715B – Great little inexpensive surplus tube bargain …… K6BIJ 44

o The DX-40 with the SB-10 – Sideband for peanuts …… K0PGA 50

o How to Build a Junkbox – Take one pile of junk, some boards, nails …… Eslick 54

o Mobile Alternators – Converting six volt units to 12 volts, plus general discussion …… W5VOH 56

o 73 Tests the Johnson Messengers – Boy, are they fun! …… Staff 60

o Station Time Panel – When a ham builds a clock, he really builds a clock …… Ives 62

o Remote Antenna Tuning Unit – Particularly valuable for mobile applications …… W8HOA 68

o Recipe for Cooked Ham – ZZZzzzzzaaaaaap! …… W6NKE 70

o Cartoon – Ha ha, I hope. Or did your sense of humor get shot off in the War? …… Rogers 72

o A Hidden Lab – Or how to get along with a fussy wife …… W3BNS 74

o Like New RAX – Surplus gem …… W7IDF 84

o Precision Frequency Standard – Another surplus gem. A real gem too. Great …… W4WKM 88

March 1963 (#30)

o Two Meter Pre-Amp – Two nuvistors, built by a perfectionist …… W9DUT 8

o Portable Ragchewer – Low-power rig and small receiver. Eminently portable …… K6LJY 14

o Infinite Impedance Match – New type of matching system for beams. Looks good …… W6NAT 20

o QRP Transmitter – 1S4 peanut whistle …… W1MEL 22

o Let’s Regulate – Voltage regulated power supplies for transistor circuits and filaments …… W2RWJ 24

o Amateur TV Transmitter – 432 MHz rig with 832A in final …… W0RQF 28

o A Six and Two Portable – Complete bandswitching transceiver …… K8KDX/6 32

o Mode Switch for the Eico 720 and 730 – Phone-CW switching system for this popular combination …… W0DSU 38

o Nuvistor RF Pre-Amp – Brings up signals on all of the less expensive receivers …… W6SFM 40

o Receiver Buying Guide – Pictures, prices, and basic data on all postwar receivers …… W4WKM 44

o Measure L & C – Using an audio signal generator …… K6AI 60

o Surplus Crystal Calibrator – Real good deal. 500 kHz …… W4WKM 66

o Plug-In Cans in Amateur Construction – Those surplus cans can he used for a lot of handy building …… W4WKM 68

o CW Sidetone Oscillator for SSB Rigs – Most of ’em have no provision for this important function …… K6CYG 82

o The Eico 723 – $49.95 60 watt rig. Does a fine job …… W3UZN 84

o The New Look in Surplus – A lot of new stuff is hitting the surplus market …… W4WKM 90

April 1963 (#31)

o Adjustable Regulated Power Supply – Playing around with transistors? Then have: one of these …… W1ISI 8

o Diode Noise Generator – Simple test instrument to tune up converters, receivers and stuff …… Thomas 15

o Selected Circuits – Polar relay test set great for the RTTY group …… W4WKM 18

o Decibles – What they are, how to use ’em, complete with a monograph …… K1MRK 21

o Vector VFO – Simple, stable oscillator for 80 meters. Great for DX-60 and the like …… W7IDF 24

o Wee Birdcage – Restricted space antennas are always of interest …… K3LNZ 26

o Protect Your Investment – How to modify your gear without disastering the resale value …… W4WKM 30

o A Survey of Mobile Transceivers – There are quite a few …… Staff 32

o Cartoon – Ha! …… Rodgers 49

o Dress Up Home Made Gear – It doesn’t really have to look like you made it in the cellar …… W0OPA 50

o Find the Common Ground – Some suggestions which may improve the interest of your contacts …… K4ZQR 52

o Controlled Carrier Screen Modulation – Putting it into perspective …… K3LNZ 54

o Compact VFO Dial – Using turn counting dials for multi-turn coils, PTOs, etc …… W4WKM 56

o Making Etched Circuit Boards – Full instructions for a not very hard process …… W1ISI 58

o Oversight – Simple addition of a choke which keeps DC off your antenna and you off the floor ……WA2HYS 62

o All About Sideband – Well, almost all, anyway …… Staff 66

o Junk Box Station – Shows how easy it really is to build up a station out of stuff …… W4MLE 70

o The NCX-3 – 73 test report …… W2NSD 78

o Solving the Bird Problem – Plaintive plea for cleaner signals …… W5HJV 80

o How Low Can You Go? – Tuning from 10 to 500 kHz …… K4ZGM 82

o High-Efficiency Switching – For that custom final …… W4WKM 88

o The SW-240 – 73 test report …… W2NSD 90

o Stimulus in the Space Age – Amateur telemetry balloons and all that, ya ….. W1WQH 92

o Waters Switches – For antenna switching, etc. Coax switches …… K2CM 98

o Inexpensive Coax Connector – Adaptor System – Inexpensive and flexible way of piping small amounts of VHF around …… W4WKM 102

o Plot your Skip Zones – Do-it-yourself propagation system …… W9QKC 104

o One Ham in a Million! – Well, one in 350,000 anyway. Story about 5X2JKO in Nigeria …… K9AMD 106

o What is a Ham? – Permission granted to reprint this in non-ham magazines, etc …… K7GPZ 108

o The Heath HX-30 – Test report submitted by 73 reader on Heath six meter SSB transmitter …… W3WTO 112

May 1963 (#32)

o Six Meter Transceiver – Cute little five transistor hand-held unit. Parts kit available …… K3NHI 8

o 6DJ8/ECC88 Converter – Six meters down to 14 MHz using really hot front-end tube …… WA2HVK 11

o Simple T-R Switch – For the CW man who wants full break-in without TVI …… W4MLE 12

o All-Band Linear Kilowatt – Using the new Amperex 8179 you’ve been reading-about …… W2LPC 16

o Reducing Receiver Noise – Read this one, it is really important… No kidding …… Gabus 24

o The Mark IV – Nice six meter rig, 6146 final …… K2HQY 30

o Multi-Channel Pre-Amp – Feed several rigs from one mic and preamp …… W9CWG 38

o A Challenge to the Antenna Experimenter Quads: tri-band, five-band, two-three-four element, etc ….. W4AZK 42

o Panoramic Spectrum Analyzer – Build your own …… W0BMW 52

o Shielding the Breadboard – Some ideas on neat breadboarding …… W1ISI 58

o Coax Folded Dipole – Broad bands things …… W3HJR 62

o Getting into Electronics – It’s a good business too ….. W6JAT 66

o Selected Circuits – Altec Lansing modular transistorized audio components …… W4WKM 71

o Diode Modulators – Big technical article …… Staff 74

o 73 Tests the Knight-Kit P2 – A new SWR meter kit …… K6UGT 80

June 1963 (#33)

o Instant 220 – The AN/DMQ-2 is a snap to put on 220 …… W2TQS 8

o More Selectivity for the RT-91/ARC-2 – Great transceiver, covers 40-80 …… W6BJI 11

o PE-97A? What’s That? – 12V in, 250V @ 100 mA out. Just right for Two’er, etc …… W4DWU 14

o Bandspreading the BC-348 – Curing one of the few drawbacks of this great surplus receiver ……W5EUL 18

o Lazy Man’s Coil Evaluator – Nice little piece of test gear you’ll want to build. 73 kit …… W0QWY 20

o Converting the BC-230 & BC-430 – Inexpensive surplus rig which can easily cover 160-10M …… W5EHC 24

o Ecdysiasm – RT45/ARQ-1 demonstrates stripping for fun and profit …… W4WKM 30

o A Beginner’s Receiver – BC-453 plus converter, product detector, etc …… K6JHJ 32

o Power Tuning – Motorizing receivers with surplus drive units …… Ives 40

o Beam Rotor – Putting one of those surplus motors to work …… K1SDR 43

o CW Monitor – One transistor ten minute construction job. 73 kit, naturally …… WA2WFW 44

o Antenna Relay Unit – Uses BC-442 unit from ARC-5 …… W4WKM 46

o Function of the Loading Coil – In mobile antennas …… W9GCQ 52

o Propagation Charts – What bands to where, when… Maybe …… Nelson 54

o More Selectivity for the Two’er – Nice rig, but you have to admit that it could use some selectivity …… K6CJN 56

o The ART-26 TV Transmitter – Don’t forget to subscribe to the ATV Bulletin, $1 per six issues …… K6MIO 58

o Special Surplus Section – Thirty-three solid pages of surplus bargains. Have fun …… W2NSD 65

o A Bargain Receiver for 220 – The R-48/TRC-8. Easy conversion …… K3IUV 100

o Three for the ARC – You didn’t think we’d pass up some ARC-5 conversions, did you? …… W7ATK 102

o The ARC-5’s – Did you? …… W4WKM 104

o Still Another 2 Meter Conversion – ARC-3 transmitter …… W4WKM 106

July 1963 (#34)

o Sizzling Six – Super sensitive six meter converter. Kit available …… W9DUT 8

o Chemical City TU – One of the best RTTY converters to come along so far …… K8IQJ 14

o Low-Ebb in the Sunspot Cycle – “Humph, that’s science fiction” said Tom astoundingly …… K2TKN 17

o Two-Banding the Swan One Bander – Cinch …… W8DZH 18

o Six Meter Transmitter – 2E26 output. Kit available on terrific tuning-indicator …… K6GKU 22

o Two Meter Antenna Coupler and SWR Bridge – Very important item for VHF’ers …… W6TKA 32

o Field Day – Eimac hams get out for this annual event …… W6JAT 28

o Replacement Power Transformer – What to do when caught without a replacement …… W5PPE 36

o The Visitor – Parable …… W2CRR 38

o Paco GDO – A good little dipper you may have overlooked …… W5SUC 46

o The Cubical Quad – How they work …… W4YM 48

o Two-Band VHF Quad – Six and two meters …… W6SFM 50

o Putting a Quad Up – With a minimum of money and manpower …… K2AAC 58

o Three-Band Three-Element Quad – Now that you know how great quads are, here’s how to make one …… W9AIW 62

o Propagation – What time to where, maybe …… Nelson 65

o Active SSB Modulators – Big technical article. Guaranteed understandable …… Staff 66

o New Look in RF Ammeters – Do-it-yourselfing ammeters …… W4WKM 72

o Knight-Kit R-100A – Checking out this inexpensive receiver …… W6EUM 76

o Heath Monitor Scope – Long needed product. Works …… W4WKM 78

August 1963 (#35)

o Dry Cell Rigs – QRP mountaintop special for six meters …… K1CLL 8

o Diode Noise Generator – 73 kit. Zener diode voltage regulated job …… K9ONT 15

o Video Modulation – For the ham-TV contingent …… W8VCO 16

o Magic T-R – Best Tee-R yet for VHF with no loss of sensitivity …… K5JKX 20

o Saturn 6 – Soup up your halo with this tuning method …… K5LPE 22

o Utopia Break-In – Hear through your own sending and keep track of the frequency …… W4MLE 24

o Practical Vee-Beam – This is like a small V-beam handbook sort of thing …… K1MRK 30

o Coax Cable Losses – Or why serious VHF men use open wire line …… K5JKX 36

o The ON5-PA9 Operation – Details on the Verviers Rally …… G3BID 38

o RF Wattmeter – Cardboard mailing tube plus lightmeter… Slick ……W7CSD 46

o Transmitting Tubes – Specifications on all popular transmitting tubes …… K5JKX 48

o Propagation – What time to when, from where, maybe …… Nelson 52

o Power Supply – Tubeless, general purpose …… W7OE 54

o Confessions of an Electronic Genius – How to become one …… K6UGT 58

o Squelch for the Two’er and Six’er – Nawthin to it …… W0TWP 61

o $25 Cheap – Towering up the hard way …… W1MEL 62

o Add-O-Circuit – International Crystal rings the bell …… W2NSD/1 66

o SWR Meter – More info on using this baffling test equipment ……W8JWP 68

o Vertical Antennas – Theory and practice. Learn …… W9EGQ 70

o Further on the Windom – Darned good all-band antennax …… W3AFM 76

September 1963 (#36)

o Cast Iron Balun – Using ferrite core inductors. 73 parts kit available …… W4WKM 8

o CW Noise Limiter – Or have you noticed that your noise limiter turns off on CW? …… W6SFM 10

o Errorless RTTY Converter – Well, almost errorless …… K5JKX 12

o Bourbon S-Meter – As contrasted with the more popular Scotch S-Meters. Parts kit on this …… W6TKA 18

o Cartoon – Har de har …… Rodgers 20

o Towers – Compendium …… K1APA 22

o VHF Receiver – Module type construction, tuner for VHF converters …… W0RQF 26

o Heliwhip Tuning – It is kind of foolish not to have your mobile whip tuned …… W2IAZ 34

o Propagation – What time to where, maybe …… Nelson 38

o UHF Cavity Design – Maybe you aren’t on 6M or up, but you can learn something anyway …… K5JKX 40

o Dual Antenna System for Mobile – For multiband operation. The XYL will have a fit …… W2IAZ 48

o 73 Tests and HX-20 – Mobile sideband for us paupers. Works fine …… K6KGS 52

o Variable Inducer – Remote controlled antenna tuning …… WB2CQM 56

o AM Quiz – Maybe you need to sit down and read some of our technical articles …… W5EHC 60

o Rotten CW – Right …… W1GQJ 62

o Monitor Scope – If you haven’t bought one, you’d better build one. This’s easy …… W5JSN 66

o Q-5’er Reborn – Should never have died …… W4WKM 70

o Code Master – Take one phonograph, add ingenuity …… K6OKX 76

o Save that Mil – Efficiency pointers for mobile work …… K1JWU 75

October 1963 (#37)

o Do-it-Yourself WBFM Transceiver …… K5JKX 8

o Why Johnny Ham Can’t Hear – (with apologies to Rudolph Flesch) …… W6VAT 12

o Why Fight Ohm’s Law? …… K5HPT 16

o Tri-Element Remotely Tuned Yagi …… WB2CQM 22

o Rules of Thumb – Or How to Get in the Ballpark and Stay …… W5IUR 28

o Combination Antenna Coupler …… W3WPV 30

o The Minute Motor …… W3WPV 36

o Filament Transformer Conversion …… W5VOH 40

o 144 MHz Nuvistor Converter …… W9DUT 44

o The Portable HE-35 …… W3IKH 50

o Buyer’s Guide …… Staff 56

o Product Detector …… K5JKX 76

o Mobile Transceiver Construction …… K5MWH 78

o A Novel Type High-Capacitance VFO …… YU1FR 86

o Radio Astronomy …… WA2BWQ 92

o The Big Switch …… W4STX 94

o Double Power for CW …… W2EZJ 96

o Panadaptor Converter …… K6VNT 98

o Compact Transistor Circuits …… Pullman 100

November 1963 (#38)

o Another Approach to TVI – Harmonic Reduction …… K5JKX 8

o 432 MHz Converter – Using the Navy surplus CFN-46ADT …… W5AJG 16

o The Perfect Match …… VE3DGV 24

o SWR/PWR Meters …… W2KPE 28

o All-Band Conical Antenna …… W5VOH 32

o Tool and Workshop Section …… W2RWJ 40

o AC Adaptor …… W5KKB 42

o Come-a-Longs …… K4FQU 44

o Of RTTY – And the TUZ terminal unit …… W3TUZ 48

o 73 Tests the Hallicrafters SK-140K …… W3UZN 62

o The Amateur’s Cope Canaveral …… K2YIH 64

o Listen, Fellow Radio Amateur ……W6SAI 69

o Communicator IV on CW …… W9SEK 75

o Propagation Forecast …… Nelson 80

o Premium Tubes, cont. …… Gardiner 81

o 73 tests the B&W 6100 …… W2NSD/1 84

o The Battle of the Century …… W2AAA 86

o Shocking… but True …… WA2GCF 98

o Slow Scan Vocoder Transmission …… W2AOE 100

December 1963 (#39)

o Some Guys Make It – And then there’s us …… K2ORS 6

o QRP Kilowatt …… WA4DQS 8

o 50 MHz DSB – A novel approach …… Unknown 16

o Six Meter Transceiver …… WA2INM 11

o VHF Contest Special – A dissertation on the use of the Corner Reflector on 144 MHz …… K9SGZ 20

o The VR Tube …… Lyman 24

o 432 MHz Exciter – From the ARC-27 RF Subassembly …… W5AJG 32

o Cartoon …… W5IMJ 38

o Sideband Linears …… Staff 42

o Barney and the ZDO …… Margolis 46

o Antenna Fact and Fiction …… K6CTV 49

o How to Fill a Box …… W7CSD 56

o Four Bands with the KWM-1 …… K6GHU 60

o 80 Meter Dipole …… W6LVT 65

o The Drake 1B …… W5VOH 68

o Noise Reducer …… W5SOT 72

o Better Results with AM …… VE3AZX 76

o An Answer to “Listen .. Fellow Radio Amateur” …… W8COG 82

1964

January 1964 (#40)

o Transistorized Receiver – High Quality …… W3HKX 18

o Receiver Deceiver …… W2RWJ 30

o Let’s Keep it Simple …… VE2AUB/W5 36

o Going RITTY …… W4RWM 39

o Well Grounded …… K4ZGM 42

o The Beginning …… W1KSZ 52

o How Good is Your Receiver …… WA4EPY 55

o Effective Filtering – Or shut that thing off! …… W2OZY 58

o Two-Element Phased Array …… W7RTP 60

o Europe on $2000 a Day …… W2NSD/1 64

o Heath HW-22 – 40 meter SSB transceiver …… WA2TDH 74

o Automobile Gauge Noise Elimination …… W2BZN 78

o Do-it-Yourself – almost …… W5EUL 84

February 1964 (#41)

o Two Meter SSB Rig – employing novel features ……WA2IKL 6

o Heath Warrior Tip …… W2DOR 12

o Simplified Receiver Design – become an instant expert …… WA2INM 14

o Making an AC Capacitor …… K5JKX 23

o Heat Dissipating Tube Shields …… K2ENN 24

o More on the Magic TR Switch …… K5JKX 23

o Miniture AM Tuner – transistorized broadcast tuner …… K6AI 30

o Loud Speakers and Enclosures – for phone …… W1JKX 28

o Transistor CW Transmitter – 2 Watt, 7 MHz …… W2RHD 36

o Quieting Small Cooling Fans …… Ivess 39

o Unusual Receiver Circuits …… W1OOP

o A Long Look at Test Equipment …… K5JKX 42

o Practical Ground Systems …… WA6BSO 52

o BFO …… K1YVB 62

o ZL Special for Forty …… Scharpf 64

o RX Audio Probe …… W5VOH 66

o Neutralization …… K5JKX 68

o Comments on “Incentive Licensing” …… KZ5LC 78

o Still More on “Incentive Licensing” …… W2AOE 80

o Cartoon …… Rogers 95

March 1964 (#42)

o The Little Punch on VHF …… K5JKX 6

o Transistorized RTTY Converter …… W1JJL 14

o Modulation Measurement – the simple way …… K5JKX 16

o 144 MHz Transistorized Converter – high performance …… W3HIX 18

o Biasing Tubes …… W2BDG 20

o Six Meter Transistor Receiver …… W5JSN 22

o Speech Compression for Mobile …… W7SMC 28

o Mobile Power Supply …… K6BIJ 30

o Neatness Does Count …… WA2BWG 32

o 3/4 Meter TV …… K2OPI 35

o Swan Transceiver Modifications – AGC amplifier and AF/RF gain control …… W5TOC 36

o Mobile Rig …… K5JKX 40

o Transmission Lines – tripe and triva …… W5EUL 44

o Modularization …… K5JKX 46

o Transceiving High-Level Mixer …… W2KPC 48

o Electronic Filter Capacitor – or, what won’t they transistorize next? …… W2RWJ 53

o More Gain for the SX-140 …… W2HTN 54

o Rig Hr Is Homebrew, OM …… W5HJV 57

o Superhet or Regen …… K6BIJ 58

o Getting Publicity …… W4WUQ 60

o More Comments on RM-499 – written on some of the IoAR RM-499 ballots …… Staff 62

o Aldabra …… VQ9HB 64

o IoAR Tour – Part 2 …… W2NSD/1 74

o Outstanding Amateur – An award to W6AEE …… Staff 95

April 1964 (#43)

o Los Angeles Six Meter Repeater …… K6VWM 6

o 1296 MHz RF Pre-Amp …… I1LOV 14

o Our Man in Washington …… W2DUD 18

o Under the Noise …… W2NSD/1 20

o The Hallicrafter’s SR-160 – a readers look …… W8GTT 24

o An Armstrong Sweeper …… W2EMF 26

o The Man-Key ….. WA60HD 28

o IF Spotter …… W5WGF 34

o The Naughty Pi-Net – why is misbehaves …… K5JKX 38

o 60 Watts on 75 …… VE1IC 42

o Pushbutton Control …… K5JIC 48

o Waveguide Simplified …… K5JKX 52

o New Ones from Old Ones …… K5FUP 58

o Voltage Regulation …… K5JKX 60

o What Every Amateur Should Know ….. W2DUD 72

o The Vertical J – a simple, inexpensive six meter antenna ….. K5JKX 82

o Propagation Forecast….. Nelson 96

May 1964 (#44)

o Flying Noise Lock …… K2TKN 6

o Matching VHF Antennas …… K5JKX 12

o Where Have Our Bands Gone? …… W2DUD 16

o The Quad-Quad – for two …… W8HHS 20

o Class D Amplifier – introducing a new type of audio circuit for transistors …… K5JKX 26

o 12 Volts from 6 …… K6BIJ 32

o Single Tube Oscillator-Multiplier …… K5JKX 34

o SSB, DSB, AM, etc. …… K6HJH 36

o Inboard Calibrator for the NCX-3 …… WB2MAH 42

o Push-to-Talk for the HT-37 …… W2ZBS 46

o Gardner Modulator Revisited …… WA2AKK 50

o Now Hear This, Fellow Amateur …… W4ICY 54

o Frequency Standard …… W2YLH 60

o More on the Vertical J …… K5JKX 62

o Big Brother and How He Grew – or House or Seven Gables, Ham Version …… K4ZJF 64

o Amateur Radio Emergency Service …… K7KYG 68

o Correspondence from the Members – Letters we bet you won’t see in QST …… Staff 69

o TVI …… K6BIJ 76

o Novice Transmitter …… K1WXY 78

o H.S.T …… XYL-G3NMR 80

o Hobbyist? Write!…… W1MEG 83

June 1964 (#45)

o T-51/ARQ-8: 6 Meter AM and SSB Transmitter …… W5AJG 6

o Nickel Cadmium Storage Batterys …… W4VGS 14

o ARB Aircraft Receiver…… W1MEG 16

o ARR-1: Adding SSB …… W6BHR 18

o TV-10/A: 220 MHz Transverter …… W5AJG 20

o ARR-15 …… W1MEG 24

o R44/ARR-5 Receiver …… Ives 26

o Surplus Find …… Gardiner 30

o Propagation …… Nelson 31

o Really High Gain …… K5JKX 33

o Smaltz for Semiconductors …… Kidder 34

o Surplus Circuit Breakers …… Pafenberg 39

o IP-69/AlA-2 Panoramic Indicator …… W8DMR 40

o Telechrome 1462-A1 XMTR for 220 MHz …… W5AJG 47

o T-28/APT-1: 2 Meter AM and SSB XMTR …… W5AJG 52

o Correspondence from the Members…… 58

o Using 416B and 8058 Tubes on 432 MHz …… W5AJG 66

o Regulated Power Supplies …… K5JKX 76

o The BC-348 …… K8ZHZ 88

o TS-118A/AP Wattmeter …… W1MEG 123

o Radar Principles – Simplified …… Gardiner 125

July 1964 (#46)

o The 432’er: Outboard RF Stage …… K1CLL 8

o The 432’er: RF Amplifier …… K1CLL 10

o The 432’er: Tuned Trough Line Mixer …… K1CLL 14

o The 432’er: Local Oscillator Chain …… K1CLL 16

o The 432’er: First Evening of Listening on 432 …… K1CLL 20

o The BH-2 …… K5JKX 22

o 2300 MHz Wavemeter …… K7YJF 26

o VHF Tunable Oscillators …… K0CZD 36

o Six Meter VFO …… WA6CDO 42

o VHF Yagis from TV Antennas …… W6TKA 44

o Semiconductor Schmaltz ….. Kidder 50

o The Ever Useful T-Pad …… K5JKX 58

o Symmetrical Latching Relays ….. Ives 62

o ARRL Motives: A Closer Look …… W9AIY 68

o Working New Countries via Moonbounee …… OHINL/W6DNG 73

o VHF Buyer’s Guide ….. WA4HWH 78

o Ham’s View of the Alaska Earthquake …… KL7CKQ 84

August 1964 (#47)

o Two-Band Transistor Transmitter …… QZ7BQ 6

o Two Meter Transistor Receiver …… K6TOV 14

o Stripping Transistor Radios …… K8YCH 20

o UHF Beacon …… W6GGV 22

o Squelch for Transistor Receivers …… Geisler 28

o Those Fragile Transistors …… K4CPR 29

o Transistor AM-FM VFO … WA0HQA 30

o Transistor Final for Forty ……W0TKX 34

o Minute kW Power Supply …. K8IKA 40

o The Signal Helper …… W3WJN 44

o Transistorized Receiver …… Morgan 46

o Simplified Transistor Biasing …… W2HQY 54

o Transistors for Ham Use …… WA4HWH 63

o Vanguard Modifications …… K0VQY 64

o Heath SB-300 …… WA2TDH 66

o Time for a Change …… W7ZC 68

o Moonbounce News …… W2NSD/1 72

o Correspondence from the Members …… 74

o Another Keyer …… K9SGZ 76

o Design Hints: Transistors …… K0VQY 82

o Beast for Ten ….. WA2WYJ 84

o Propagation …… Nelson 96

September 1964 (#48)

o Linears for the Two’er …… K1CLL 6

o Linear for the Sixer …… K1CLL 11

o Portable Six Meter Station …… W1OOP 16

o Now That You Ask Me …… W7IDF 29

o More on the 6DQ5 …… K5JKX 32

o SJS Receiver …… K5JKX 34

o Another Antenna of Note …… W2RWJ 40

o Tuned Line Tank Circuits …… WA4EPY 42

o Six the Easy Way ……WA9CZQ 50

o Simple Squelch …… K5JKX 53

o Souping the TCS …… K7CJJ 54

o Varicap Phase Modulator …… W7CSD 56

o Friendly Silicon Rectifiers …… W2RWJ 58

o Moonbounce in Switzerland …… HB9RF 62

o The Heath SB-400 …… K1RPB 64

o Save Ten? …… WA4HWH 66

o SB-10 and the ARC-2 …… W6PDD 68

o RF Hazard …… W2QCI 70

o How to Raise a Beam …… W2RWJ 72

o Power for DC Motors …… W4WKM 76

o Gonset Sidewinder …… W2NSD/1 82

o Rubbish Wire Long Sky …… K5HVZ 84

o Bagpipes and the Phone Men ….. W1JKZ 87

o Propagation …… Nelson 96

October 1964 (#49)

o A Ham In the White House? …… K3SUK 6

o Compact Full Size 20 Meter Beam ….. W3PMV 10

o 160 Meter Transmitter …… W4MLE 13

o 432 MHz Pre-Amp …… K6MIO 18

o The SJS Receiver, Part 2 ….. K5JKX 26

o The P&H 2-150 …… K6LOP 30

o The 432’er Transmitter RF Section …… K1CLL 32

o The 432’er Modulator …… KlCLL 44

o The HP-23 Powers the Swan 100 …… K6LOP 47

o Modulated Calibration Oscillator …… Ives 48

o Ten’er to Six …… K6GKU 51

o Varactor Tripler to 432 …… W6ORG 52

o Blow Up That Meter …… W1ISI 56

o City Life …… WA2WYJ 62

o Crystal Refrigerator …… K3HTB 64

o All About Noise Figure …… K5JKX 66

o APX-6 to 1290 MHz …… I1LOV 76

o IoAR News …… WA4PDX 87

o New Amperex Tubes …… WA1CCH 90

o NCL-2000 Linear …… W1ALU 92

o Propagation Charts …… Nelson 96

November 1964 (#50)

o VHF Log Periodic Beam …… VE3AHU 6

o SSB VFO …… K9ALD 10

o Color the Grommet Gone …… K7IDF 12

o Cartoon …… Rogers 14

o Tuneable Antenna for 432 …… K1CLL 16

o On the Air on 432 …… K1CLL 18

o Precision Audio Attenuator …… K9QYI 22

o 6 Meter VFO Transmitter …… WA2GCF 24

o Sterba Curtain for Two …… W2ZBS 30

o Electrolytic Saver …… W0HMK 31

o KWM-2 Voltage Regulator …… WA4NXC 33

o 80-40 Vertical …… WB2CQM 34

o Transistor AFSK …… K9MLD 36

o 2 Meter Mobile …… W2CJN 38

o Mobile Phone Patch …… W2LNP 40

o KWM Operating Notes …… WA4NXC 44

o SJS, Part 3 …… K5JKX 46

o UHF Transistor Circuitry …… K1CLL 48

o Mobile Noise Limiter …… K0POX 60

o Amateur Radio Operating, FCC Version …… W5EHC 62

o Designing Phase Shift Network …… K5JKX 66

o The Easy Way …… K3LNZ 68

o Failsafe Power Supply Control …… W3CJM 70

o Incremental Tuning for the NCX-3 …… K2DXO 72

o Lawrence Modification Kit …… K1TVD 74

o IoAR: The Amateur Radio Position …… W2DUD 76

o SB-33 and MP-10 …… W6VAX 79

o Amplidyne 621 …… K0CER 80

o Return to the Art …… K3DSQ 82

o Heath Applications Series …… K8AJD 84

o Kentucky DXpedition …… 90

o Propagation …… Nelson 96

December 1964 (#51)

o SSB Mobile Receiver – Lots of nice ideas in this one …… W3ZFJ 6

o Cheap Pair of Socks – Simple linear using inexpensive new tube …… W6NKZ 10

o 28 Volt Supply – 10 amps at 28 volts for $10 …… K6VNT 12

o Weather Detector – Don’t let a tornado suck you up …… K5JKX 14

o 14 Elements on 432 – Simple yagi for 70 cm …… K1CLL 16

o Miniature Multiband Tuner – Very clever and useful …… W6SFM 18

o Bamboo Birdcage – Thanks to G4ZU and the boomless Quad ……W6WAW 22

o Going RTTY – Part 2 – Part 1 was in January …… W4RWM 24

o Sixer to the N’th – Some small changes for operating convenience …… K1GHO 26

o Two’er Talk – These simple changes improve performance significantly …… W8HHS 28

o High-Level Modulation for Ham TV – Series modulator for improved results ……W7CSD 30

o That Elusive SWR – Why throw away those watts? By our Paramp author…… WA6BSO 32

o Short Folded Dipoles – How about a 33 foot antenna for 80 meters? …… W6WAW 34

o VFO Construction Techniques – Solid for stability. Like the U.S.S. Missouri …… W4WKM 36

o Two Meter Double Sideband – The Phantom rises again …… W6TKA 40

o When Good Losers Get Together – Non-technical. In fact, funny …… WA5EFL 46

o Evaluating Receivers – Just in case you’re in the market for a fancy Christmas present …… K5JKX 52

o RK 715B on 6 Meters – Old 5D21’s never die; they just turn into quarts of RF …… K2ZEL 58

o Testing the Clegg Venus – In case you wondered: it’s tremendous …… 64

o SSB With the 6N2 – Curious, huh? …… K5SGP 68

o Unit Power Oscillators – More useful UHF test gear in Bill’s inimitable style …… KlCLL 78

o Repair That Mike – Fix up that old mike with an inexpensive new cartridge …… W4WKM 82

o Heath Tunnel Dipper – A very useful piece of gear …… W3UZN 84

o The Autotransformer – For maximum power supply versatility ……W1ISI 96

o Bandpass Coupler Design – Or maybe you like to twiddle knobs …… K5JKX 102

1965

January 1965 (#52)

o 120 Watts Mobile on Two – With a well-modulated 5894 …… K5JKX 6

o AM, the Ham and Transistors – It’s not too easy to get linear modulation with transistors …… Geisler 12

o Diode Controlled Break-In – A very clever scheme for easy clean switching …… VE2AUB/W5 16

o Calibration and How to Get It – By one of the greatest hams …… K6BJ 22

o Tuned Feeders Forever – Nasty black snake …… W5DWT 24

o Pegboard Panacea – Clean up your messy workshop …… K6UGT 27

o Low-Cost GDO – For those of you who don’t like transistors …… W7CJB 28

o Transistor Amplifier Design – It’s not hard at all …… K5JKX 30

o Heath Cantenna for UHF – Bet you didn’t know that it’s good on 432 …… K6MIO 34

o I’d Like to See – All sorts of clever inventions …… W2LLZ 36

o Ham X-Word – Wear out your brain …… WA2BWQ 37

o Conelrad, No; EBS, Yes! – Simple monitor for your local BC station …… K3RKX 40

o Automatic Load Control – If you’re on SSB, you need ALC …… K5JKX 40

o Solid-State Noise Clipper – Simple way to get rid of that racket …… K6MVH 48

o Take Full Advantage of Your Halo – Simple gadget for easier matching …… WA2DJU 52

o Is Your Investment Protected? – Insure your expensive gear …… K9UTN 56

o Converting the RDZ Receiver – From 400 to 60 cycles …… K1VDX 66

o So We Bought a Spiralray – And found a lot of interesting features …… WA4EPY 6

o Two’er Linear – To give you more practical information on inexpensive linears …… K1CLL 70

o 40 Watt DC-to-DC Converter – It operates on 6 volts and uses a common transformer …… W3UWV 76

o Heath SB-200 – Very nice …… WA2TDH 78

o How to Fish for DX – From a ham who ought to know …… 5Z4ERR 82

o Propogation – Conditions aren’t too bad …… Nelson 92

February 1965 (#53)

o The Ham and TVI – With clever cartoons by K3SUK …… WA6OQP 6

o Coffee Can VXO for Oscar III – Be ready for QSO’s to Europe on two …… W7SMC6, W6HEK 10

o Transistor, Hi, Hi – A few interesting notes on Nipponese transistors …… K6QKL/ KH6 11

o Multiband Vertical Antenna – A simple high-frequency antenna for hams with space problems …… W3UWV 12

o Let’s Go Ham TV – The details of getting on the air …… K3DSM 18

o Solid-State SSB Power Supply – With same vital information as well as construction details …… W1VIV 24

o Handy Dandy Zeners – An interesting article in spite of the title …… W0GJB 28

o Cooling Notes on the 4-1000A – Keep it cool for long life …… W6VFR 30

o 120 Watts on Two: Part 2 – The first part of this fine mobile rig was in January …… K5JKX, W5PPE 32

o More on That Simple TR Switch – Published in May 63 …… W4MLE 38

o The Disguised Twist – A V-H beam for 2 …… WA6LUM 40

o The Backward-Upside-Down Halo – Unconventional mounting for improved results …… WA41NJ 44

o VHF-UHF Mixers – Detectors and mixers using helices, strips and semi-cavs…… K1CLL 46

o UHF Signal Generator – A generator for 432 and 1296 …… K6MIO 52

o Just a Piece of Wire? -For VHF constructors …… K5BLF 56

o The Ham and CD Emergencies – Are you doing your share of PS? …… W5CZ 58

o Brussels International Mobile Rally – See what fun reciprocal licensing can be? …… G3BID 62

o The Callbook Game – It doesn’t take much imagination to extend this one …… WA2TDH 66

o Plate Modulation with Controlled Carrier – Interesting idea from a great 73 booster …… W5EHC 68

o Audio Bandpass Filter – Something for the CW ham …… Hansen 70

o Correcting Errors in the “Errorless RTTY Converter” – Fine title, that …… K5JKX 72

o The Swan 350 – A fine new piece of gear …… WB6KEH 82

o The Lafayette HE-45B – For inexpensive 6 meter contacts …… K3VHK 8

o The SB-33 on AM – The title is self explanatory …… W7L1A 9

o Caveat Emptor – Have you sent in your ad this month? …… Staff 92

o Propagation – With some thing new …… Nelson 96

March 1965 (#54)

o Dual VHF Converter – Combination 144/220 MHz Nuvistor converter …… W9DUT 8

o Two-Band Collinear Antenna – For 40 and 15 meters, by George …… W7CSD 10

o The Parametric-Transistor Multiplier – A new development in electronics of great interest, no doubt …… W6GXN, W6QUD 12

o Improving the Garden City TU – Don’t let the title fool you; it’s a complete TU, whatever that is …… W7CJB 16

o The Ham – Don’t miss this one. It hurts. Illustrated by K3SUK …… Pirolo 22

o Oscar III Orbit Computor – Be ready for the bird to fly …… W7SMC/6 20

o Converting the CB-1 to Six Meters – Don’t let those old CB rigs go to waste. Most are …… WA2INM 26

o The Big Bang – A g.g. 813 linear …… W4BV 28

o A Better Converter – Six meters, four transistors, two conversions …… WA0HQA 32

o Hints for Microwave – To inspire you to get to work …… K7ZFG 34

o A New Power Tube – The 8236 in an AM modulator. The tube is good for SSB, too …… W1KSZ 36

o Hybrid 432 MHz Exciter – Get on 3/4 meters with only two tubes and a varactor …… W9SEK 38

o 5/8 Wave Vertical for Two – For people who live in backward, vertically polarized areas …… K4DJG 42

o Printed Circuits-Almost – An effective method of attractive construction …… W3ITO 44

o Scope Pix Trix – Take pictures of your scope traces …… K6UGT 48

o Easy Higher Power – Using the 6146B …… K9FWF 50

o AC Transceiver Supply – Our SSB power supply for this month …… K4PNJ/4 52

o Understanding Mixers – You won’t understand this article …… W6BUV 54

o Electronic Antenna Control – Or how to point your beam the way your indicator points, or something …… WA4GTA 60

o DC’izing Scope – Just what you’ve always wanted …… K5JKX 62

o The Missing Link – A short discussion of the many troubles that beset our readers …… K9AMD 66

o El Toro – Mosley’s limited space antenna that you can use anywhere …… W7OE 68

o Heath GR-64 – Every ham should have a general coverage receiver. Here’s a good bet …… W3UZN 72

o Understanding Schmidt Triggers – If you want to understand Schmidt triggers, this is a good article for you. You probably don’t …… K5JKX 74

o Waters Mobile Antenna – As used on the block behemoth …… W2NSD/1 79

o UHF Dummy Load – More UHF experimenteringistic gadgetry …… K1CLL 82

o Improved Halo Mount – Fine for hams who send their cars to car washes instead of having the XYL do it …… K3JZH 84

April 1965 (#55)

o Europe on Two? – Get ready for Oscar III …… W7SMC/6 3

o Letter from Gus – Beginning 73’s monthly letter from the DX King …… W4BPD/AC5H 4

o 1 kW PEP – 811’s in a small box …… W9EWL/0 6

o 6 Meter Heterodyne VFO Transmitter – A simple, stable, easy-to-build transmitter from Bill …… K1CLL 10

o Kostless Keyer – Well, maybe not kostless, but klose to it …… W8MQW 14

o Double Hula – A small new antenna. Looks like a halo, but good for HF …… K2ICF/6 16

o Propagation – Looks like an interesting month…… Nelson 20

o Special SSB Transceiver Section – All the dope on all the HF SSB transceivers …… Staff 22

o IoAR News – What’s new with the Institute …… WA4PDX 32

o Versatile Code Monitor – Transistorized with P.C. board, yet …… W8GXU 34

o 432 MHz Noise Generator – So you think your converter has a noise figure of 3 dB? …… W6GXN 38

o KWS-1 on VHF – It adopts easily for use with transmitting converters …… W4API 44

o Amateur, Spare That Meter – And a chuckle with K3SUK …… W8BPY 48

o Transistor RF Power Amplifier Design – This month’s technical article is a first in the ham field …… WA2DJU 52

o Some Worthwhile Seneca Modifications – To improve its fine performance …… K6VNT 56

o Two Meter Low-Noise Transistor Converter – From our European correspondent …… Rohde 62

o A Novel AFSK Oscillator – For the VHF RTTY’er …… K8ERV 66

o Signal Generator for VHF and UHF – You’ll have to turn to page 70 for the real title …… K1CLL 70

o Converted Converter – Turn that old converter into a receiver …… W3ZFJ 74

o 73 Tests the Galaxy V – And is happy with it …… W2NSD/1 78

o Unusual Philological Diversion – Sometimes known by other names …… K2PIJ 80

o Caveat Emptor? – Send in your ad now. CE works! …… Staff 92

May 1965 (#56)

o 432 MHz Converter – Easy-to-build converter to get you on 70 cm …… K6MIO 6

o A New Approach to Phasing – Not all SSB transmitters use filters, you know …… W8HXA 12

o The Big Bomb – Runs a gentleman’s gallon …… W0SYK 18

o Two for Two – Some antennas for our western hams …… W6TKA 22

o The Trouble with Fred – A fetching tale illustrated by K3SUK …… Margolis 26

o A Versatile Oscilloscope – Every ham needs a scope. This one does a lot, but doesn’t cost it …… W0OPA 30

o Constant Gain Audio System – Pretty clever. Take a look …… Pullman 36

o A Cool kW – Another approach to the inexpensive power supply …… K5YWJ 38

o Beer Can Cavities – For use on two. Low noise transistor converter included …… WA2INM/1 40

o Four-Element Rhombus – Yeah, that’s right …… K2IRK 44

o Power Decade Resistor – Or is it, “Decade Power Resistor?” …… Lyman 48

o Improve Your GDO – If it suffers from the common GDO maladies …… K5JKX 70

o Six Meter Junk Box Station – The title sounds vaguely familiar …… K3VLQ 54

o Design of Log Periodic Antennas – A 73 technical scoop …… VE3AHU 62

o Gus: Part 1 – This is it: The beginning of Gus’ life and DXpeditions …… W4BPD 66

o 73-A-Phone – Yeah, it’s a stupid title, but what do you expect from an editor of S-9? …… K5JKX 70

o The 1215’er – Hoisington sure makes 1200 MHz easy to reach …… K1CLL 72

o Total Boredom – But not to read …… W71DF 80

o Oscar III Highlights – What happened …… K0CER 82

o Davco DR-30 – Review of a remarkable new receiver …… WA1CCH 86

o Litts Code Snitcher – Code monitor-oscillator. Good to at least 16 wpm …… WA6UVS 90

June 1965 (#57)

o A VFO With FSK Provisions – A stable VFO for the SSB-RTTY man …… W6TKA 18

o Shoulder Strap Portable – An easy-to-build 6 meter rig for portable operation …… K1CLL 22

o Superimposing 6 Meters on Your Tri-Bander – The ideal match for a transmitting converter …… W4API 25

o The Waters Cadax – A very fine all-purpose electronic key …… WA2TDH 26

o 73 Tests the Henry 2K Linear – An Imperial Gallon …… W2NSD/1 28

o Gus, Part 2 – In which a country boy from South Carolina finds true happiness …… W48PD 30

o Interlaced Sync Generator for Ham TV – A reply to the anguished cries for more TV information …… WlJJL 34

o Fixed or Mobile – Some notes on hamming for the handicapped …… WA9AFI 36

o A Compact DC-to-DC Converter – Especially useful for that one tube in a transistor rig …… W6GXN 38

o Oscar Round-Up – Who was worked and who was heard …… K0CER 40

o A Surplus Sleeper – Here’s one you may have overlooked …… W9SLM 44

o The Kitchen Heat Sink – We try to get the best titles …… W0CGQ 46

o Converting the R-508/ARC – A modern surplus receiver for 118-148 MHz …… W4WKM 48

o Using the 416B on 220 MHz – In the CG-50ABM …… W5AJG 52

o High-Power with the ART-13 – Souping up an old reliable …… K4PFK 56

o Converting the ARC-4 – A versatile 2 meter transceiver with little work …… W4WKM 60

o The CV-253/ALR Converter – A useful receiver for 38 to 1000 MHz …… W1KSZ 66

o 220 MHz Converter from the ARC-27 – Tunable to get rid of the trash and birdies …… W5AJG 68

o Adding GDO Features to the TS47A/APR – Every VHF-UHF ham needs a GDO. Here’s an easy one …… W5AJG 74

o A Surplus Gold Mine – More specifically, the R-105A/ARR-15 …… W4WKM 78

o 432 MHz Pre-Amplifier From the TD2 – Uses a 416B …… W5AJG 82

o Fantastic Surplus Catalog Section – Needs no explanation. Just drool and order …… Staff 91

July 1965 (#58)

o A Two Meter Transistor Transceiver – To give you a little encouragement to go portable on VHF …… I1SLO 6

o A Simple Two Meter Collinear – Build your own CushCraft collinear …… W5GVE 14

o 220 Converter Number 9 – The last tube converter Hank built, but a good one …… W1OOP 18

o Reviewing the CushCraft Squalo – It works …… WA2ZCH 20

o Push-Pull 5763s on 144 – You might call it a forest of 5763s …… WA6VTL 24

o 2C39 Amplifier for 1296 MHz – Get yourself a respectable signal on the band …… WA8CHD 26

o A Varactor Tripler to 1296 MHz – The perfect mote for the 2C39 amplifier …… W6ORG 30

o The CPO-CWM – Translation: Code Practice Oscillator-CW Monitor …… WlJJL 32

o A VHF Flashback – A few dewy-eyed memories for the old timers …… W6SFM 34

o Silver-Plated 417A Converter for Two – Of course, you don’t have to silver-plate it …… K2KTV 38

o Testing the Galaxy Rejector – A useful accessory for your SSB gear …… WA2TDH 41

o 20 WPM – or Bust! – Hints on getting the Extra Class license from an Edison Award Winner …… WA6VTL 42

o The Gonset Six Meter Sidewinder – Transistorized sideband on six …… Staff 50

o Converting the Swan Monoband to Two – A bargain two meter SSB transceiver …… K9EID 52

o How’s Your VHF Antenna Working? – Not the ultimate, but a useful method of checking gain …… WA2INM 59

o A Potpourri of VHF Hints – Four short articles that can be applied to VHF and HF …… Staff 62

o The Design of VHF Tank Circuits – Don’t let the math scare you away; the graphs give the answers …… W6GGV 66

o Gus: Part 3 – More hints on DX from the DX King …… W4BPD 76

August 1965 (#59)

o This One Sounds Good – Like a Transmitter Should – A fancy name for an article about a 20 watt six meter AM transmitter …… W2BHT 6

o Going RTTY: Part 3 – The scope monitor …… W4RWM 12

o Imagineering With Meters – Put those miscellaneous meters to good use …… W8BPY 14

o The EHS Portable Dipole – Works from 80 to 6 …… W9FQN 16

o Some Notes on Grounded-Grid Linear Amplifiers – And some interesting ideas in a 8072 linear …… K4ZZV 18

o Simplified Solid-State – Simple, easy-to-use, practical ham transistor circuits …… WA2INM/1 24

o All-Band Tuning for the Drake 28? – Easier and harder than you think …… K9LTD 26

o When Standard Switches Won’t Fit – Making and using odd-ball switching arrangements …… Ives 28

o A CHU Time Receiver – In case you don’t have a watch …… W2LYH 30

o Switching with Diodes – It’s easy-and very useful …… K1SDX 3

o Improving the Paco GDO – And other tube-type grid dip meters …… K1AMN 41

o Another Way to Measure Noise Figure – Hmmm. What’s the other way …… K5JKX 44

o The Big Sail – The neighborscaring-ist 432 MHz antenna you’ll ever see …… K6MIO 50

o Gus: Part 4 – Now what’s he up to? …… W4BPD 62

o The SB-34 – Sideband Engineers improves their already excellent SB-33 …… W8QUR 68

o A DC Dummy Load – Here’s a use for those tubes you were going to use for lamp bases …… Lyman 70

o Quick and Easy Add-on Neutralization – In case, unlike most hams, you don’t plan ahead …… K1CLL 72

o Polar Versus Solar Beam Orientation – Personally, I use my Boy Scout compass …… W6TAQ 7

o Parallel Resistance Nomogram – Now all you have to do is find this article when you need it …… WA2BWQ 76

o An RF Amplifier for 432 – Not exactly a 3 dB noise figure, but …… K1CLL 7

o The National HRO-500 – Sigh …… W2NSD 80

September 1965 (#60)

o Der Kleiner Keyer …… WB2KPE 6

o QRM on 432! …… W2NSD/KP4 14

o Practical Meteor Scatter …… K1CER 20

o A Simple DX Antenna …… W6WAW 24

o The Ultimate in Transmitter Control …… WB2CCM 28

o DSB Circuits …… W6TKA 34

o The Zorch-Proof Connector …… W4WKM 36

o An One Filament Transformer Bridge …… W5NGX 38

o The Cheap SWR Bridge …… WIJJL 42

o Simplified Tuning for the Drake 2B …… W7ZC 44

o W2NSD in Hungary …… W2NSD 46

o Two Meter Transmitting Converter …… K1CLL 50

o Why Use Fuses? …… W4WKM 52

o Writing for 73 …… W2NSD 54

o A Gold-Award SOS …… W2AAA 56

o Gus: Part 5 …… W4BPD 66

o The Heath Ham Scan …… WA2TDH 70

o The Sub-Antenna …… W8ADV 72

o Passivating Aluminum Alloys …… Kidder 74

o A Surplus SWR-Power Meter …… K9SOA 82

o An UHF Signal Source …… K1CLL 84

o Light Bulbs for Dummy Loads …… W8QUR 86

o VFO Stability …… W6BUV 88

o Low-Cost 6-10 Mobile Antenna …… W3GSC 94

o How to Screen Modulate …… K5JKX 96

o Surplus Switching …… W4WKM 104

o The Evolution of a Transistor Transmitter …… W6WFH 106

o Build or Buy? …… W7OE 114

o Let’s Go Up or Down …… W8VVD 118

October 1965 (#61)

o 2 kW Mobile – PEP, of course …… W2DMK 6

o Meterama – Get some good use from those old air-speed indicators …… W5GWF 12

o Six for Six – Six elements for six meters …… WB2CQM 18

o A State-of-the-Art Converter – Integrated circuitry comes to hamdom …… W3HIX 22

o Hamfest Out on a Limb – A little step toward international hamming …… Margolis 26

o Are 20 Cent Transistors Coming? – Apparently so …… W7SMC 30

o The Lowly Coax Fitting – A little picture article …… W5VOH 34

o An Expedition to UJ8 – 20,000 feet up …… UB5UG 38

o A Junk Box Power-SWR Meter – In case you missed the two SWR meters last month …… K4QYC 44

o The Design Industries Diplomat – A fantastic new piece of gear …… W2NSD 48

o A Ham Crossword Puzzle – Unfortunately, we didn’t have room for the solution …… K1CLM 50

o Two Meter Transistor Transmitter – Get two watts out of a 2N107 on two …… K1CLL 54

o A Reliable Audio Source – A 7 lb generator that works as well as a two ounce transistor one …… Ives 62

o Improving the Heath Mohawk – Pepping up the RF and audio …… W9ECQ 68

o Gus: Part 6 – Gus in Prague …… W4BDP 76

o The National NCX-5 – An amazing rig …… W5DWT 84

o Testing the Heath kW Kompact – The Little Bomb …… WB6KEH 88

o Improve your Monoband Swan – For better stability and class C …… K6LGW 90

o That Unwanted Sideband – Another in the 73 Sideband Series …… K5JKX 92

o DC Transformers – Need 28 volts in your car? …… W6ANU 102

o Getting the Most from Your Two’er – A few more changes for one of the most popular pieces of ham gear …… WA2QZH 111

November 1965 (#62)

o We Got Across! – Catching up with the past: No.3 …… W2AAA 6

o An Audio-TV Transmitter – Broadcast sound and video on the same carrier …… W8VCO 14

o Hybrid Phone Patch – Of course, we don’t really approve of phone patches …… KH6IJ 18

o A Coax Antenna for Twenty – Or fifteen or ten …… W2NQS 20

o Six Solid Watts an 160 – We keep telling you that tubes are obsolete …… K9IAH 22

o Half-Rack Panels – Sure beats those orange crates for mounting …… W2DXH 26

o A Novel ALC Circuit – Why didn’t someone think of this before? …… W2KAK 30

o The Nuvistatectar – Clever product detector for your old receiver …… K9EID 32

o Transistors for Hams – Which inexpensive transistor to use where …… WA6BSO 34

o The Flex Match – Perfect for feeding a coathanger …… W3ZVT 38

o Adding ALC to the Swan 240 – There are lots of old 240s around …… K5JKX 40

o A TV Converter – Use your TV camera with a normal TV set …… W9SEK 44

o Crystal-Controlled Transmit With the KWM-2 – Works with other transceivers, too …… HB9TL 46

o Lovers Lane – Hmmm. Drawings by K3SUK …… Lattak 48

o A Modern Frequency Standard – Not expensive or complicated, either …… W5NUW 50

o The Baffling Totem – Keep the kids out of your shack …… W7PXE 54

o 432 Solid-State Local Oscillator – A more modern LO for the 432’er …… K1CLL 56

o Six Meter Transmitting Converter – Twenty in, six out …… K0AHD 62

o The VHF Newcomer – Our VHF editor gives you a few hints …… K0CER 66

o Gus, Part 7 – What happens when a South Carolina Baptist visits the Vatican? …… W4BPD 70

o The Heath SB-110 – Single sideband on six to match the SB-Line …… WA1CCH 78

o Transcam’s SBT-3 – There are a lot of interesting ideas in this one …… W2NSD 86

o Evolution of an Antenna Tower, Florida Style – How about a 70 ft. telephone pole in your yard? …… K4FQU 88

o Slippery Six – A VFO-heterodyne battery rig for six …… K1CLL 94

o A Light Wattmeter – Trying to improve an old idea …… Henry 98

o VFO Control of SSB Receivers …… W0CGA 110

December 1965 (#63)

o Solid-State 432 Exciter – Puts out 8 watts on 432 MHz. A ham scoop …… W9SEK 6

o 8058 Nuvistor Preamp for 432 MHz – Complete plans and layouts …… I1L0V 10

o UHF-VHF Dipper – 50 to 500 MHz with no work …… WA1CCH 11

o Transistorized FSM – Printed circuit board available for this one …… W1JJL 14

o Ham Christmas Gifts – Ho, ho, ho! It’s that time again …… 16

o RF Measurements – Build a Q-meter and impedance bridge …… K5JKX 20

o A New Two Meter Heterodyne Exciter – Use a suppresser balanced mixer to get on two …… WA2JAM 28

o Licensing in the Belgian Rallies – A report on the 1964 rallies …… G3BID 24

o A Regulated Solid-State Supply – Here’s the supply for the 432 exciter on page 6 …… W9SEK 34

o Transistor Twenty – A tunable twenty meter converter …… Scott 38

o Frame Your Awards – A few hints on showing off your prizes …… W7OE 40

o Lazy Man’s Phone CQ’er – A voice controlled relay …… WA2MTB 42

o The 1215 Transistor Superhet – Part 1; The Mixer …… K1CLL 46

o The Solid-State Slippery Six – A transistorized heterodyne VFO …… K1CLL 50

o A Crystal Controlled Front-End – Put that old pre-selector to work …… K1QIM 52

o Field Effect Transistor Primer – Another ham scoop. FET’s are mighty useful …… WA6BSO 54

o A Doll for Serifina – Reminiscences of an old ship sparks …… W7IDF 66

o Build a 4-1000A Socket – The tubes can be cheap, but the sockets! …… W7CSD 70

o An Audio Frequency Standard – Transistorized, of course …… K8ERV 72

o A Bumper Mount for “Impossible” Cars – If one won’t do it, why not use two? …… W7SMC 78

o Gus, Part 8 – Gus descends on Lebanon, Egypt and the Seychelles …… W4BPD, etc 84

o Two Through Twenty Field Strength Meter – Tunable and transistorized, too …… W7OE 9

o A Low-Power Standby Transmitter – AM on HF? …… W7CSD 104

o The Full-Wave Tripler Myth – We don’t like to rush things …… W6LWE 100

o The Three-in-One Birdcage Beam – For 10, 15, and 20 …… ZS3NZ 110

1966

January 1966 (#64)

o The Space Monitor – Now, here’s a real construction project …… W9DUT, W9JFW 6

o A Unijunction Keyer – Build a modern keyer for less than $20 …… WA6TSA 12

o Two-Element 20m Vertical Array – Get 3 dB gain and 15 dB front-to-back ratio …… W6TKA 16

o They Said It Couldn’t Be Done – What? A female build a rig? …… WA2YTK 18

o Simplified RF Measurements – Measure impedance and power easily …… WA6BSO 20

o A Six Meter Peanut Whistle – Every ham wants a walkie-talkie; here’s Larry’s …… WA2INM 24

o A Visit to the CN8s – Edgar tells a little about his trip …… G3BID 28

o The Pot Box – Any experimenter needs one …… K6UGT 32

o A RTTY Signal Generator – Good for SSB and AM, too …… W8GXU 34

o This is Fine Day – The first intercontinental ham QSO …… W2AAA 38

o Transistor Meter Amplifiers – Need a 10 microammeter? …… WA6BSO 44

o The Twixer – Add six meters to your Two’er …… W0HMG 46

o A Line About Line Noise – Maybe that power blackout was caused by a mad ham …… W4NJF 50

o Assembling the Sideband System – The conclusion of our SSB series …… K5JKX 54

o Gus: Part 9 – Agalega, Here I Come! …… W4BPD 6

o Build the OTC – A one transistor converter for VHF. Build one …… WA4SAM 74

o The Eico 753K – Eico’s really scooped with this one …… W3KET, W3TND 76

o The Drake R-4 Receiver – A very versatile receiver for your money …… WA2TDR 78

o 73 Tests the Knight C-577 – Audio compression works …… WA1CCH 8O

o VFO Stability, Part 2 – Transistors are better than tubes …… W1KNI 82

o 73 Tests the Coveya 6 – Heh, heh. The neighbors don’t know it’s for six …… WA1CCH 84

o Twelve cm Heathscope – It’s the Heath IO-12 …… W7IDF 86

o The 1215 Transistor Superhet – Part 2, the local and other oscillators …… K1CLL 90

o Vibrator Checker – It’s a stupid subject, if I say so myself …… WA1CCH 95

o Low-Noise UHF Transistors – Don’t read this if you’re a tube man. It’ll make you cry …… W1OOP 96

o IoAR News – News from the new IoAR Secretary …… 98

o What’s Your Mobile Strength? – Simple FSM adapter for your car antenna …… W9NTP 102

o Why Instruction Books? – Why indeed? …… W70E 10

o Improve the NF of Old Receivers – Soup up the ol’ hearin’ aid …… WA4EPY 108

February 1966 (#65)

o An 8163 Linear – An all-band 2 kW linear …… W6OVW 6

o And Then There’s Phasing SSB – Discussion and a simple practical exciter …… WA6KLL 10

o Better Selectivity for Your Transceiver – CW selectivity makes CW operation easier …… Roanhaus 16

o A Crystal-Controlled Front-End – Stable high-frequency reception on your old receiver …… W1QIM 20

o The Key to Peaceful Coexistance – Between six meters and channel two …… K6MVH 22

o Breadboarding – Excellent discussion of experimenting …… W2DXH 24

o Noise Considerations in a Pre-Amplifier – Necessary information for UHF hams …… WB2EGZ 28

o Transistor Receiver-VU Style – Scrounging wins! …… VU2NR 30

o The Astro Ten – Simple ten meter transmitter-converter for mobiling …… W3YZC, W3IXL 34

o Improving RTTY Reception – Good hints for the teletype fan …… W4EHU 38

o Quick and Easy Bias Supplies – Steal a little bias without fuss …… K5JKX 42

o A Word About Crystals – And not on encouraging one, eitheri …… K0JXO 44

o The Design of Parabolic Reflectors – Now, how do you make them? …… K3PBY 46

o Transistor CW Adapter – Especially for the SB-33 …… W5JSN 50

o Give and Take – History of international radio conferences …… W2AAA 52

o The Zero Meter Band – A bit of fine fantasy …… WA2TDH 58

o Automatic Tuning for the ARC-5 – This one’s a real thriller …… W4WKM 62

o Boasting Talk Power – In ALC type transmitters …… K2IKZ 64

o Seeing Your SWR – Clever scheme for antenna work …… K5JKX 66

o The 1215 Superhet, Part 3 – The final article: if, of and assembly …… K1CLL 74

o Put Your SB-33 on CW – A scheme totally unlike that on page 50 …… WA6PGA 78

o 73 Tests the Tunaverter – A quick look at a tunable transistor converter …… WA1CCH 80

o How to Be a First Class Lid an Phone – Without really trying …… WA5DEL 82

o Some Ideas on Noise-Free CW Reception – Why listen to all that trash? …… K4DAD 8

o The Crystal Decade – Full frequency coverage with crystals …… W4ATE 90

o Hero of Ham Bands – Deke put Nokomis on the map…… K9AMD 96

o Amateur Frequencies – Wonder where forty went? …… Schmeling 98

o Semi-Modernizing Vibrator Power Supplies – Get more power from those old Vibrapacks …… W6TKA 102

o Use Your GDO and Z-Meter – They’re very useful, as this article indicates …… W0BMW 104

o The Care of Storage Batteries – At least lead-acid types …… W5SOT 108

March 1966 (#66)

o Circular Polarization – Use CP for moonbounce, trop, and OSCAR …… K6MIO 6

o Solid-Stale Sixty – A 60 watt regulated power supply for and with semiconductors …… K3LCU 12

o Crystal Oscillators – Tube, transistor and FET. his is a good one …… W6GXN 14

o Slaying the Monster – Or: Why fear TV? …… W0EDO 18

o Diary of a DXpedition: VP2VD – So you think it’s just a matter of sitting by the pool and operating? …… K4IIF 20

o Unmodifying the S-38 – Have you ever met a ham who hasn’t had a S-38-once? …… WA5MCU 26

o Vector Vector – Vector boards are sure useful …… W2DXH 28

o Cathkey – Is this the simplest automatic keyer? …… K2UOC 32

o All Solid-State – Another interesting one from one of (y)our favorite authors …… W1OOP 34

o QSL Here is Homebrew, OM – Homebrew QSLs? …… WA2ZKR 36

o The 88 Cent Varactor – Who says they’re all expensive? …… WA6BSO 38

o 12 Volt Beetle Juice – Even the Fastbacks are 6 volts. Rah for VW …… DJ2UL 48

o The HD-10 – Heath’s new electronic keyer …… W2JDL 50

o Solder and Soldering – Make your soldering stick …… K4CPR 52

o The Rhombic Antenna – A round-up of information on these almost-legendary antennas …… W0SII 54

o The Vacap Tester – Here’s a tester that sings at you …… W0BMW 60

o The Feedline Argument – A little more fuel for it …… W0OPA 66

o Letter from Jail – Stuffy readers: skip this …… W6GTC/jail 70

o Improving the HX-20, HR-20 and HP-20 – Who could improve on this title? …… K0LFA 74

o The Walky-Nosy – A portable emergency communications receiver …… K6EDX 78

o Our Friend, the R.I. – Maybe a little more appreciation of the FCC is called for …… W7IDF 82

o Those Good Old Ham Bands – They’re getting mighty thin …… W7ZC 88

o Low-Pass Audio Filters – The full story, he says …… K5JKX 90

o Gus, Part 10 – I think I’ll take a plane and leave the bus to Gus …… W4BPD 98

April 1966 (#67)

o Barefoot and All That Jazz …… W7IDF 6

o A Simple Six and Two Amplifier …… K1CLL 8

o That Pretty Anodizing …… W8BPY 12

o The Bee Eliminator …… W8VVD 14

o The Six Meter Jewel …… K3PXT 16

o The Ascendency Curve Yagi …… K6EDX 20

o The Uhfit …… WA1CCH 26

o Six to Two Transmitting Mixer …… K9EID 40

o A Slotted Line for 1250 MHz …… WA8CHD 42

o A Short Look at Current Propagation …… Nelson 46

o Diddleboxes …… W2DXH 48

o Modernizing a 432 MHz Converter …… W1OOP 54

o Power Control Through Magnetic Beaming …… W2OLU 58

o A Look at Antennas for DX ….. K6ZGQ 68

o Someone Should Do Something About …… K3BNS 74

o The Tranx Circuit …… K7VMV 76

o A Semi-Switchless Directional Coupler …… VE2HE 80

o Two Buck Monitor …… WA6KLL 82

o Controlled Audio AVC System …… EI4R 84

o One-Way Dual Battery …… WA0AIY 86

o Multi-Channel Transistored Pre-Amp …… K9SGZ 100

o Ferrite DF …… W1DFS 101

o Gus : Part 11 …… W4BPD 102

o Built-In Speaker for the TR-3 …… K5SGP 112

o Diode Checker …… K8ABR 112

May 1966 (#68)

o New VHF Circuits for Transistors – 6 meter converter and filter from Frank Jones …… W6AJF 6

o RF Applications of N-Channel FETs – Very important article; a 73 scoop, of course …… WA5KLY 12

o Size is Impressive – A little humor to brighten the day …… K3VMZ 14

o FSK Principles – How to transmit RTTY on HF …… W4EHU 16

o VHF-UHF Panoramic Reception – Now you can watch that empty band …… W5NPD 20

o UHF Grid Dipper – Excellent dipper, even if it does use tubes …… WA6BSO 24

o PY2USA – Fostering good relations through ham radio …… PY2CUB 32

o W2USA/TV – Good publicity for hamming at the ’39 World’s Fair …… W4DKJ 34

o 12 Volts on 6 Meters – Ed doesn’t like semiconductors, I guess …… K8ADG 38

o 432 the Easy Way – Cheep, too …… WB2FYB 40

o Dealing with the Information Explosion – In a blood thirsty way …… W2DXH 42

o Regulated DC-to-DC Converter – Put in 6 to 24 volts and get out 12! …… W6GXN 46

o How Much Capacitance for that SSB rig? – Beat the high cost of microfarads …… W4VRV 50

o The Mini-Supply – A simple, inexpensive regulated power supply …… WA6BSO 54

o Origin of the Code – An interesting sketch of history …… W2AAA 58

o Understanding AVC – A very thorough article …… K5JKX 66

o Why Work the World Now? – Complete rules of 73’s new WTW DX certificate …… W4BPD 78

o A Private Listening Speaker – For mobiling …… K5BEC 80

o A Solid-State Product Detector – The semiconductor answer to pentagrid mixers …… W6GXN 84

o HW-22 on CW – Takes about 10 minutes, too …… W7UXP 88

o Transistor Power Supply – Simple, quick and cheap …… WA2TOV 90

o Ham with a Heart – K7SML, a multiple sclerosis victim …… K7NZA 92

o Fuses – What fuse to use where …… W9ZZH 95

o Confession – A SF thriller …… W0HMK 96

o Low-Voltage Gonset Super Six – Throw away that HV power supply …… W0BMW 100

o HX-50 on MARS – Very simple procedure …… K9CZI 104

o Improving Der Kleiner Keyer – A few correct ions and improvements …… W4BRS 106

o More Contacts from Within – Simple indoor antennas for high frequency use …… K3RXK 108

o For Those Who Have Given Up Code – Encouragement for novices and technicians …… WA8BJK 110

June 1966 (#69)

o The Micro-Ultimatic – 73 scoop: integrated circuits in a high-performance keyer …… W1CFW 6

o A Transistorized Scope – Another ham scoop: use transistors for deflection amplifiers …… K8ERV 14

o 50 Watts on 50 MHz for $50 – This project should prove popular …… K1CLL 18

o Two Meter Transistor Converter – Cheap, simple and works well …… W6AJF 24

o 220 MHz Transistor Converter – Grounded emitter or grounded base, too …… W6AJF 30

o 432 MHz Transistor Converter – Four 50 cent transistors give you a 4 dB converter …… W6AJF 34

o Standard Time and Frequency Transmissions – What time did you say it was? …… W6JTT 38

o A Simple Two-Tone Test Generator – Find out your true power output in PEP ……WA6BSO 42

o BC-348 Crystal Filter – Improve the filter in your BC-348 …… K2ZZF 46

o APA-2 Pre-Amp for Two – Of course, a transistor works better, but …… W5LTR 48

o Modernizing an SCR-522 – That’s what I need, a modern SCR-522 …… WA6BSO 50

o The First and Last Q-5’er – A little history of command sets …… White 60

o The Stoner RT-1 RTTY Converter – A transistorized RTTY receiving adapter …… WA6BSO 64

o Five-Band RDZ – Marry a RDZ to a standard coil tuner …… K3HIL 66

o Gus: Part 12 – See where our South Carolina boy is now …… W4BPD 68

o Surplus Conversion Guide – Find out where to find that conversion …… WA1CCH 74

o 220 MHz Receiver from the ARC-27 – A good use for the guard receiver …… K3CES 78

o BC-453 Series Receivers – The simplest conversion …… K1EUJ 82

o Do You Want a Lawsuit? – $100,000 is a lot …… W7OE 96

July 1966 (#70)

o MARS HF Mixer and Amplifiers – Also good for putting your tri-band rig on 15 or 10 …… WA4KIH 6

o Two-Element Weeping Willow for 15 – Perfect for novice DX’ers …… WA8MVR 12

o Frequency Measurements for Hams – Receives VLF, too …… W6BLZ 14

o VHF Parametric Transistor Multiplier – Experimenters must read this one. A scoop, of course …… W6GXN 20

o How to Get Your Extra Class License – Here’s the easiest way to do it …… W5TOM 26

o A Transistor Analyzer Using FETs – It checks h11, h12, h21, and h22 …… K3LCV 30

o A Field Effect Voltmeter – Here’s a real transistorized VTVM: 22M input resistance …… K3LCV 34

o An FET Audio Compressor – Use FET’s for high input impedance …… K3VNR 38

o The Kindly Keyer – This IC keyer uses a commercial PC board …… WB6AIG 46

o Save That Transistor! – Defective transistors as Zeners and varactors? Sure! …… K9VXL 50

o Lambda Lines – Scraps of twinlead a make good Lecher lines …… W2DXH 54

o Designing Transistor RF Amplifiers – Good info for the serious experimenter …… Thorpe 58

o A 75 Watt Two’er Linear – It uses Bill’s favorite Compactron …… K1CLL 66

o A Better Sideswiper for Electronic Keyers – Your cat will like this one …… W6BLZ 70

o Replace Your 811s with 572Bs – The right way …… WB2EPG 72

o UB5UG’s Five-Band Vertical – It’s pretty clever, and simple, too …… W8FAZ 74

o Don Miller DXploring – The life of leisure on a lush tropical island …… W9WNV 76

o Gus: Part 13 – Gus keeps rolling along …… W4BPD 78

August 1966 (#71)

o More Power on Six – Drive this linear with your AM or SSB exciter …… WA9JGU 6

o James Dandy Mixer – A very simple, yet useful, test instrument …… W2DXH 12

o A Poor Man’s 220 Transmitter – It puts out half a watt; good for local work …… WB2EGZ 14

o Another Solid-State 2m Transmitter – With very inexpensive transistors …… VE2DG 20

o The Mini Monitor- Every ham should have one …… W3UZN 22

o Audio Test Amplifier – This is very useful, too …… W9SEK 24

o The Chicken Method – But aren’t we all chicken? …. K4ZZV 26

o A Tubeless VFO for VHF – An old idea, but a good one …… W1DFS 28

o A Toroidal Multi-Band Tuner – MBT’s have hundreds of uses …… W6SFM 30

o The Perfect Squelch – Very simple tone-control squelch …… W5VCE 36

o A Digital Readout VFO – It’s linear within 2 kHz and designed for 5-5.5 MHz …… WA9AXX 38

o A 50 kHz Calibrator – Fine for those old surplus receivers …… W6GXN 42

o Junk Box Pre-Amplifier – Perk up your old receiver at no cost …… WA4ZQO 46

o The Heath SB-100 – Heath’s new HF transceiver works very well …… K2EQB 50

o High-Frequency Power – Don’t throw away that 400 Hz generator! …… WA6NlL 54

o Tech Schools for Ham Training? – They’re good for commercial training, too …… W0RA 58

o The Knight TR-106 and V-107 – Knight’s new 6m transceiver and VFO make a nice pair …… WA1CCH 62

o A Curtain Going Up – Why not use a Bruce curtain and work more DX? …… W2EEY 66

o Another Look at the Like-New Circuit – A few changes make this good circuit even better …… W2DXH 72

o Gus: Part 14 – Gus goes to Aldabra, and around the U.S.A …… W4BPD 76

o Coaxial Connector Handbook – Part two of WA6BSO’s series on coaxial systems discusses the types and uses of coax fittings …… WA6BSO 93

September 1966 (#72)

o Compact Six and Two Transmitter – Here’s a very clever 60 watt rig; easy to build, too …… K6RIL 6

o Poorboy Mark II Quad – A simple, light, three-band quad …… K4USK 14

o 5 dB Gain on 75m Mobile – Increase your mobile signal at low cost …… W3BTQ 20

o Accurate VHF Frequency Measurements – Use your BC-221 for high accuracy on two meters …… W5WGF 22

o Add SSB AGC to Your Receiver – It’s not hard or expensive …… W1OOP 26

o Ultimate Station Control – You mean you’re using a 89 cent knife switch? …… W2AJW 30

o Match Box Tuner – W6BLZ’s version of a Johnson antenna tuner …… W6BlZ 38

o Two Transistor Testers – One simple, the other simpler. Both work well …… W6AJF 4

o Transistor Voltage Regulator – Need 9 to 28V at 10A? …… WB6MOC 46

o A Visit to The R.L. Drake Company – A short tour of their factory …… W0PEM 50

o Try Homebrewing Now – It’s not hard or expensive …… WB2JQC 5

o Diodes for OT’s and Beginners – There’s no reason not to understand them …… W2DXH 54

o Two Meter Repeater – Even if you don’t need a repeater, this is interesting …… W5KPZ 58

o Complete Overload Protection – This one’s pretty original …… W4ZUS 66

o Heathkit HM-15 SWR Meter – Ken likes it …… W7IDF 68

o A Pox on Your Junk Box – Maybe some people shouldn’t build …… WA6JNI 70

o Drafting for the Ham Writer – This article contains charts of our schematic symbols …… K0EFC 72

o Lafayette HA-650 Transceiver – Six meters-portable and carefree …… WA1CCH 78

o Conar 800 TV Camera Kit – Like to get on ham TV inexpensively? This’ll help …… W3WTO 82

o Gus, Part 15 – Gus continues his visit to the Seychelles …… W4BPD 86

o Coaxial Accessories Handbook – The third part of Jim’s series on coaxial systems covers antenna tuners, baluns, switches, relays, dummy loads, SWR bridges, and attenuators …… WA6BSO 93

October 1966 (#73)

o Integrated Circuits – How will they affect you? …… WA1CCH 4

o EI Marrinero – An inexpensive eighty meter SSB transceiver …… W6BlZ 6

o Two Tubes for Two – SSB on two with two tubes and a twenty meter transceiver …… K9EID 16

o 432 MHz Transmitting Converter – Not too expensive or hard to build …… K6RIL 18

o A Two Meter FET Converter – Low-noise, low-cost and low cross-modulation …… K6HMO 22

o Electronic Thermometer – Make sure that your linear doesn’t cook …… K5ILG 26

o Controlled Avalanche Silicon Rectifiers – There’s no need for those shunting capacitors and resistors …… W9EGQ 26

o Telegraph Keys – Look what’s happened to them …… WA6CEZ 30

o 220 MHz Receiver – A super regenerative receiver for poor folks …… WB2EGZ 38

o Ham TV, Let’s Get Going – Part 1: Theory, testing and receiving. Part 2 next month …… K3ADS 42

o The Multical – A multi-purpose crystal calibrator …… K9VXL 48

o Connectors for Surplus Tubes – Use those 2C39s and 4X150s you got so cheap …… K2ZEL 50

o DX Vertical – Very simple, very cheap, very effective …… W0IFY 52

o The Humidivox – Here’s a new idea for avoiding citations …… WA2IKL 58

o Gus, Part 16 – After you read this, you’ll won’t to move to Aldabra …… W4BPD 60

o WTW and You, Mr. DX’er – And the WTW countries list …… W4BPD 66

o The Future of the 10 Meter Band – It’ll be coming to life in not too long …… Nelson 70

o The WRL Duo-Bander – Ralph likes it; two bands for 50 cents per watt …… W8QUR 74

o The RF Discriminator – It’s little-known to hams, but very useful …… K7DEP 78

o AM vs. The Carrier – Here’s proof that a carrier is not affected by AM …… W7CSD 82

o Propagation – How do you like our new propagation charts? …… Nelson 88

o Zener Diodes – Here’s an excellent article that explains Zeners in detail. Tells you how to check and use surplus ones, too …… W2DXH 108

November 1966 (#74)

o 80 Watts on Two Meters – A worthy successor to Bill’s 50 watts for 50 meters …… K1CLL 6

o The Novice Class – Then and Now – How it’s changed over the years …… W7OE 12

o Tuning the RTTY Signal – You can’t receive teletype if you can’t tune it …… W4EHU 16

o A WWV Receiver for $5 – Convert a simple transistor set to receive 2.5 MHz …… W2DXH 20

o Streamlined Transistor Modulators – You can fully modulate without a transformer …… Thorpe 24

o Ham TV, Part 2 – The conclusion of this excellent article …… K3ADS 26

o High-Voltage Power Supplies – An individualist’s thoughts on transceiver power …… K6ZGQ 30

o VHF Antennas – Useful hints from one of VHF’s most respected hams …… W6AJF 38

o The Minican – A soup can version of the Cantenna …… W6JTT 44

o A Stable VFO for VHF or HF – Simple, inexpensive and effective. Transistorized, of course …… K6RIL 46

o The X-Beam – Two small V-beams give a Rhombic-like pattern …… W4TDI 50

o Remove the Drudgery from Ham Radio – Clever, but facetious, I think …… WA2IKL, WA2ZCH 54

o The Humidivox – An original scheme to avoid certain FCC trouble …… WA2IKZ 58

o A Disappearing Antenna – Now you see it; now you don’t …… W6DFT 62

o Custom Decals – A real thriller …… W9SLM 66

o A Simple C-R Bridge – Every ham needs a capacitance-resistance bridge …… WB6AFN 68

o Down Range – AFETR – Life at missile-tracking stations doesn’t sound bad …… WA4NXC 70

o The Second Requirement – Are you getting full output from your transmitter? …… WB2HAL 72

o Heath SB-400 Modification – Use the SB-400 and SB-300 more effectively …… W4NJF, K4ASU 74

o The Heath GR-54 SWL Receiver – It’s a nice inexpensive general-coverage receiver …… W3UZN 78

o Healthy Ham Clubs – Improve your club, it’s not hard …… W6DDB 80

o Gus: Part 17 – Gus continues his visit in the Indian Ocean islands …… W4BPD 94

o Ham Microwave Propagation – Important information for the ham interested in experimenting in our fascinating microwave bands …… WA6PZR 98

o WTW Progress Report – When are you going to join the growing list of WTW winners? …… W4BPD 106

December 1966 (#75)

o Transistor Power Supplies – Useful information on low-voltage DC supplies …… W6GXN 10

o The Sideband Escalator – Have you tried SSB speech clipping? …… W6TAQ 16

o A Ham Electronic Counter – Determine your frequency the modern way …… K7UDL 20

o The Novice Pair – Build a practical, modern novice station …… W1JJL 28

o A Lab-Type Power Supply – Regulated low-voltage output; PC construction …… W6GXN 38

o QRZed the YL – The frustrations of an YL’s husband …… WA6JNI 42

o Climbing the Novice Ladder – Part 1: The novice bug bites …… W7OE 46

o A Simple HF Linear – It’s not fancy, but it works well …… W7CSD 50

o The Heath SB-610 – Jim likes Heath’s new monitor scope …… W1DTY 54

o An IC Calibrator – Here’s a modern marker generator …… W6GXN 58

o LORAN – The Interloper on 160 …… W2IKZ 62

o PAK – The portable automatic keyer …… K3QKO 66

o Make the Most of Magazines – Bind your ham magazines yourself …… W6DEG 70

o A Coax Coax Antenna – Here’s a practical coax antenna …… W1DCG 74

o Cheap DC-to-DC Conversion – Six gives you twelve …… WA2IKL 78

o Storage Batteries – Use storage batteries properly …… W6JTT 82

o Return to Navassa – Photos from Don’s recent DXpedition there …… KC4AF 86

o Parabolic Antenna Design – Extensive discussion of parabolas and illumination …… K6MIO 90

o Gus, Part 18 – Gus visits the Chagoes …… W4BPD 98

o AM-to-FM Conversion – Use your Gooney Box on FM …… WA5CJG 100

o Goad Hand Sending – Some good tips from an old CW hand …… VE7CT 102

o Now You See It – An invisible mobile installation …… WA6DLI 102

1967

January 1967 (#76)

o An IC Crystal Calibrator – 10 and 100 kHz markers output; costs $13 …… KlDCK 6

o Transistor Converter Notes – Some new developments in Frank’s popular VHF converters …… W6AJF 10

o A kW with the Amperex 6KG6 – A very straight forward SSB grounded-grid linear …… W7CSD 14

o FET Transconductance Tester – A simple, yet effective checker; a scoop …… W1DTY 16

o Climbing the Novice Laddar: Part 2 – Joe starts a homebrew project …… W7OE 20

o The QRZ Machine – Something for the DXers …… W6MUR 26

o Ham TV Converter – Three transistors are all you need …… PA0BVO 30

o A Silect Six Meter Converter – It uses a FET RF amp and etched circuit construction …… W5SJN 32

o Autostart RTTY Gear – A generator and converter for VHF use …… W6AYZ 34

o VOM Transistor Tester – It uses about five components …… Thorpe 38

o Low-Power Attenuator for Ham Use – They’re cheap, yet useful to 450 MHz …… WB6AIG, WA6RDZ 40

o A FET S-Meter – Another good use for inexpensive FETs …… W6GXN 42

o Unwanted Feedback – A lucid discussion from one of 73’s top authors …… W2DXH 46

o Equipment Protection – Are you taking adequate steps to protect your gear? …… K5JKX 50

o Etched Circuit UHF Dipmeters – 130-480 MHz; very clever …… W1JJL 54

o Hamming VK9-Style – Like to go DXpeditioning on a far island? …… VK9TG 58

o SINPO and SINPFEMO – Another approach to signal reporting …… DJ0HZ 62

o 432 MHz Antenna Filter – A coaxial filter for the 70 cm band …… W6AJF 64

o Six Meter Final Amplifier – A useful 100 watt amplifier for low-power rigs …… K9EID 65

o 73 Reviews the Drake 2-NT and 2-C – A good 100 watt CW transmitter and hybrid receiver …… W1DTY 66

o A Simple Voltage Calibrator – Jim tells why your meters aren’t perfect, and how to live with them …… W2DXH 70

o The Link – A signal grabber for two …… W6HGX 78

o Techniques in Tone Signaling – Tones can be very useful for hams …… WB6MOC, K6YTY 82

o The Vanguard 501 Camera – It’s an excellent quality, inexpensive TV camera …… WA1CCH 86

o The Shackcom – A simple ham intercom …… W8MQW 87

o Gus: Part 19 – Is a flat Coke better than none? …… W4BPD 88

o A Little About Noise – A technical article for those who really want to understand noise …… K6ZGQ 92

o The Knight-Kit KG-640 YOM – A fine, taut-band VOM at a good price …… W1DTY 102

o The Motorola HEP-Line – Good, available, inexpensive transistors at the corner radio store …… WA1CCH 104

o The Knight-Kit TR-107 – Knight’s new two meter transceiver looks good …… KlRA 105

o What’s New For You? – 73’s new monthly technical column …… WA1CCH 109

February 1967 (#77)

o Getting Acquainted With Integrated Circuits – Here’s practical information on using inexpensive ICs …… Thorp 6

o Using Low-Cost FET’s on Six – Two $1 FETs and a cheap PNP give 2 dB NF and high overload resistance …… W6AJF 11

o Low Cross-Modulation on Two – A $ 1 FET makes an excellent mixer on two …… W6AJF 14

o The 30P1 Linear Amplifier – A peasant’s 30L1: Four 811As …… W1DBN 18

o An Improved Multiplier for UHF – Get enough local injection on 1296 MHz …… W6OSA 22

o A Broad-Band 80 Meter Vertical – 3.5 to 4 MHz with no adjustments …… VE1TG 26

o A Reliable UHF Directional Coupler – Here’s a UHF bridge you can trust …… WA6SXC 30

o A Solid-State Antenna Relay – Fast, low-loss, high-power, and efficient …… K2IYC 34

o Video Camera Tubes – There are lots of different types …… WB2GYS 38

o A Semi-Precision Variable Capacitor – It’s accurate to 1 pF and uses a component that’s in almost every junk box …… W1DTY 42

o Down with the Rotator – A cheap, useful scheme for small beams …… W3BTQ 47

o Mobile Logs – Personalized – Save time and trouble in mobile logging …… WB6KFI 48

o Add a Crystal Filter to Your Receiver – For less than $10 …… W1USM 50

o A Reactivator for the Semiconductor Activator – In other words, a battery charger …… K6EAW 52

o The Ancient Marriner – An antenna tuner for coax-fed beams …… W6BLZ 54

o Climbing the Novice Ladder – Part 3 …… W7OE 56

o Portable Operation Without Tears – Useful hints for the prospective portableer …… K3LNZ 60

o Practical Tips on Transistor Transmitters – You won’t want to miss this one unless you’re an AO …… K0CJF 64

o UHF-Microwave Phased-Locked Oscillator – Stable within less than 1 Hz at 6 GHz! …… K3OJK 68

o 73 Tests the Eicocraft CPO – Eico’s new line of inexpensive kits looks like fun …… 78

o 100 Watts on Two With Compactrons – Uses two 7894s in push-pull …… K1CLL 80

o The Poor Man’s Occasional Antenna – Cheap, dirty, and effective …… W7CSD 84

o Rewinding the Power Transformer – It’s not hard, as this article explains …… WB2PTU 88

o The Drake L-4 Linear Amplifier – Drake’s new linear is very nice …… WlDTY 90

o The Carrier Again – Part 2 of “AM vs. the Carrier” …… W7CSD 94

o A Simple Current Controller – Very simple and cheap …… K5JKX 96

o Equalizing AFSK Tones – Some notes for RTTY’ers …… K8ERV 96

o The International Crystal SBX-9 and SBA-50 – SSB exciter on 9 MHz and mixer to six meters …… W1DTY 100

o The National 200 – National’s inexpensive new transceiver is attracting much attention …… W1DTY 104

o An Universal Code Monitor – A clever idea for a simple monitor …… K9VXL, K9CLH 108

o Gus: Part 20 – A crisis in the Indian Ocean! …… W4BPD 110

March 1967 (#78)

o A Digital Identification Generator – Send your call automatically with no moving parts …… K6ZCE 6

o SSB Proof-of-Performance – How does your station perform? …… K6YKH 14

o A Non-Tiring CW Monitor – Pure single sine waves are monotonous. Try this instead ……W1DCG 18

o Seven Elements on Twenty – On a 60′ boom …… WA4WWM 20

o Climbing the Novice Ladder – Part 4: The code is almost conquered …… W7OE 24

o Going RTTY: Part 4 – Frequency shift keying …… W4RWM 30

o A Solid-State Product Detector – Uses two cheap transistors …… WB6CHQ 32

o AMCOM: Amateur Mobile Communications – The Phil-Mont Radio Club’s emergency stations …… K3CEE 36

o The Slide Rule Made Easy – It is easy, too …… W1MEG 40

o How to Make Better Panels – Jim’s suggestions work. I tried them …… W2DXH 46

o An IC Keyer – Here’s a different integrated circuit keyer …… W5FQA 50

o Edison: The Fabulous Drone – Was Edison really a great genius? …… Elkhorne 52

o A Simple RF Voltmeter – Make a very useful piece of test equipment. It’s low in cost …… W1DTY 56

o SDRAWKCAB Power Supply – Guess what this is? …… K1UBA 62

o A Panadapter Converter – It helps you get decent patterns on your panadapter …… WB2CCM 64

o 73 Useful Transistor Circuits – If you’re a builder, you’ll like this one. It’s a fantastic collection of useful, simple circuits using transistors for all sorts of receiving, transmitting and test equipment …… W1DTY 65

o The Importance of Being Grounded – It is important …… WA6KLL 98

o Gus: Part 21 – This month, Gus visits darkest Africa …… W4BPD 100

o The Waters Dummy Loads – One is plain; the other a wattmeter …… W1DTY 106

April 1967 (#79)

o The Super Duper Super – It may not be a super, but it’s sure super duper …… WN1ECCH 6

o A Toroidal VFO – An excellent VFO with many interesting mechanical features …… W4BRS 10

o Transceiver CW Filter and Monitor – Improve your transceiver’s CW capability …… WlDCG 14

o Dreadful Ham Cliches – Special for April …… K3SUK 16

o The Converter Converter – Stick it between your UHF converter and your low-frequency receiver …… W1OOP 18

o The Ratnick Two’er – It’s a simple transmitter for local contacts …… WA2RAT 22

o The Clinic – More first-of-April nonsense …… K3SUK 24

o Cardboarding – An interesting approach to experimenting and records ……W6FTA 26

o Buried Antennas – They don’t work too well, but they may be the best you can do …… W1DCG 34

o A Transistor Wien Bridge – 20-200,000 Hz with a simple, easy-to-build circuit …… W6GXN 36

o Ham vs. Ham – We hope these things don’t make you MAD …… K3SUK 40

o Air Mobile – Like to try operating from an airplane? …… W3ZP 42

o FM Subcarrier Generator – A simple way to add sound to your TV transmissions …… W6ORG 46

o James Dandy Diode Tester – Check your diodes very quickly with this simple instrument …… W2DXH 50

o Some Commandments for DXing – CQ’s new DX editor offers some excellent hints …… K4IIF 58

o High Frequency Single Side Band Transceivers, Receiver-Exciters, and Linear Amplifiers for Hams – Here’s a complete listing of all high frequency SSB gear by comparison table. This special section also includes a photograph and description of each unit …… W2DTY 64

o Ferromagnetic Beads – Tiny ferrite beads can make excellent chokes from plain wires …… W6SFM 84

o A Canadian Assault on FP8 – A DXpedition-vacation to Ste. Pierre …… VE1ADH 86

o he Clegg 66’er – Squires-Sanders mate to the 22’er …… W1DTY 90

o Climbing the Novice Ladder: Part 5 – A stroke of luck for Judy …… W7OE 98

o Gus: Part 22 – If you enjoy this series, you should get the DX’ers magazine …… W4BPD 106

May 1967 (#80)

o The Quad-Quad-Quad – Sixteen quads on a single mast for 144 and 432 …… VE3DNR 6

o The Expanded Quad – More gain and directivity on 10, 15 and 20 …… WA5KXY 16

o An Inexpensive DX Antenna – A low-cost, two-element quad for DXer’s ……WA6WUI 20

o The Miniquad – A practical small size quad for twenty meters …… WA2APT 23

o A Full-Size 7 MHz Rotary Cubical Quad – For hams with big backyards …… K6DDO 26

o Experiments with Quad Antennas – Optimum designs for HF and VHF quads …… IIRR 32

o The Half-Quad Antenna – Half a quad is better than none …… W0SII 35

o The Three-Element Quad – For cracking DX pileups on 20 meters …… K8YIB, K8DYZ 38

o A Light Four-Element Quad for 20 Meters – Lightweight but potent …… K0UKN 41

o Tilt That Quad at a Dollar a Foot – Forty feet for $39.75 …… W7UXX 46

o An Easy-to-Erect Quad – The “Down-Under” approach to building quads …… VK5BI, VK5VB 50

o Quad Bibliography – Twenty years of quad antennas …… W1DTY 53

o A FET VFO for 80 Meters – High-stability with FET …… W1DTY 56

o Tube Symptom Troubleshooting – If you must use vacuum tubes …… WA0NEA 61

o A 200 Watt Dummy Load for $2 – For low-interference tuning …… W2OLU 66

o The Easy Way to Decibels – But not completely without math …… K3PXT 69

o The Highflyer – A complete homebrew receiver for 80 through 10 …… W6BLZ 72

o Geometric Circuit Design – Designing complex circuits with a ruler and protractor …… Bradford 82

o A Field Effect Transistor Converter – Low cross-modulation on 10, 15, and 20 …… K6DQB 86

o WWV on the Mohawk – Without a lot of work …… K8KWQ 89

o High-Pass Receiving Antenna Filters – Eliminating spurious signals in HF receivers …… K6KA 90

o Climbing the Novice Ladder: Part 6 – Joe and Judy take the code test …… W7OE 97

o The Heathkit HW-32A 20 Meter Transceiver – One of Heath’s new single-banders …… W1DTY 102

o Gus: Part 23 – A hot trip through darkest Africa …… W4BPD 106

June 1967 (#81)

o The Whole of the Doughnut – Toroidal coils for kilowatt amplifiers …… W4BRS 6

o A 1296 Grid Dipper – 1050 to 1320 MHz with a converted APX-6 …… W1DTY 16

o Using FETs in the Command Set Transmitter – Results in a very stable VFO …… K3LCU 23

o The Dichotomy of a Tube Man – Putting on FET in the BC-906 frequency meter …… W5SOT 26

o Converting the Swan 120 to 6 Meters – Be prepared far the six meter openings this fall …… K6RIL 28

o Military Quartz Crystals for the Radio Amateur – A survey of surplus crystals …… W0HYB 36

o Converting the BC-728 – A fine superhet for 160, 80, and 40 meters …… 38

o Photographing Your Electronic Gadget – Must reading for authors …… VE3DAN 42

o Panoramic Display from the AN/APA-38 Indicator – Low-cost panoramic reception …… W6JTT 46

o RDR Receiver Conversion – Crystal controlled channels on 220 MHz …… K3HIL 48

o Build a 40 Meter Rotable Dipol – Maximum effectiveness on 40 meters with a shortened dipole …… WB2GZL 50

o Operating the BC-611 Walkie-Talkie – Great for short distances over flat terrain …… W1MEG 55

o A Poor Man’s Transmitter Cabinet – Using old TV cabinets …… WA4RHT 56

o Micro-Logic for Non-Logical Users – How to use digital integrated circuits in ham projects …… W6GXN 58

o Proportional Transistor Control of AC Circuits – Solid-state replacement for a variable transformer …… Ives 66

o Phone Patching – More Light in a Gray Area – From the legal point of view …… K8BLL 69

o The Heathkit SB301 Receiver – One of Benton Harbor’s newest releases …… W2JDL 76

o Face-Lifting the TS34/AP Oscilloscope – A great scope for less then twenty dollars …… K6GKX 110

o Climbing the Novice Ladder: Part 7 – Judy and Joe take the written test …… W7OE 111

o Ham Public Service and Broadcast Stations – Another approach to better public relations …… K4HKD 117

o Gus: Part 24 – Sir Gus tours ZS-land …… W4BPD 119

July 1967 (#82)

o North of the Border – Amateur radio in Canada …… VE1TG 6

o Suppressed Carrier Amplitude Modulator – Double-sideband adapter for AM rigs …… VE7PQ 10

o A Homebrew 50-Foot Tower – Low-cost, self-supporting, tilt-over construction …… VE6KS 12

o Simplified Transistor Design for the Ham – It’s easy when you know Ohm’s law …… VE1ADH 14

o VE0 Ahoy – Canadian maritime-mobile stations …… VE1TG 22

o World’s Fair – 1939 – And the W2USA radio club…… Staff 30

o Plain Ground Plane: Antenna – An economical antenna for working DX …… VE7BBM 36

o The Hybrid G4ZU Superbeam – A very effective three-band beam for 10, 15, and 20 …… VE3AHU 38

o A Slow-Scan Television Monitor – An economical design using surplus components …… W9VZL 42

o FET Pre-Amplifiers for 144 and 432 MHz – 2.5 dB noise figure on 432 …… W6OSA 48

o A 30 MHz IF Strip Using Integrated Circuits – 85 dB gain in a small package …… W7AKS 52

o An Un-Guyed Vertical Antenna – Very useful for small backyards …… W6JTT 56

o Two Cheap Crank-Knobs – Great arm savers for wide tuning ranges …… VE3BUE 58

o The Tri-Amp – Versatile audio test unit …… K6UGT 61

o Wide-Range VHF-UHF Dipper – 130 to 1,300 MHz with transistors …… K1CLL 64

o A Few Tower Hints – Protecting your rotator against the weather …… WA1ABP 70

o Monitoring With an Oscilloscope – Check the quality of your transmissions …… W0OPA 72

o The Basic Desk – A neat operating desk for the itinerant operator …… W0QOJ 76

o Is Rock Bounce Practical? – Mobile experimenters take note …… G3BID 78

o Moonray – Amateur radio on the moon …… W1DTY 80

o Transmit Control With the 32S-1 Receiver – Without modifying the receiver …… W6EUV 82

o Project: High School Amateur Radio Club – How to get one going and maintain it …… WA0NDV 84

o Heath HR-10 Modifications – Increased sensitivity and selectivity …… VE3FYL 86

o Glub, Glub, I’m Drowning – In a sea of noise …… WA0NQL 88

o The Galaxy V, Mark 2 – A review of Galaxy’s newest transceiver …… W1DTY 94

o The Heathkit SB401 Transmitter – Benton Harbor’s new companion to the SB301 …… W2DJL 98

o Climbing the Novice Ladder: Part 8 – Judy and Joe approach the pinnacle of achievement …… W7OE 102

o Gus: Part 25 – Capetown, South Africa …… W4BPD 108

August 1967 (#83)

o Push-Pull Class-B Grounded-Grid Linear – An unusual, if not new, approach to high power …… VE3AAZ 6

o A Frequency Calibrator for the VHF Man – Finding yourself on 144 and 432 MHz …… W6GXN 12

o The Semi-RTTY System – Solid-state AFSK oscillator and terminal unit …… K0JXO 20

o Mobile Power – The Alternator – Their use and abuse …… W9NLT 24

o Visual Monitoring of Remote Carriers – What does your CW signal look like? …… W3RMI 30

o Power Losses and High SWR – SWR and its side effects …… K2DXO 34

o Using Toroids in Ham Gear – How to wind toroidal inductors and use them …… VE1ADH 36

o Solid-State Alternator Regulator – High-performance at moderate cost …… K6UAW 40

o The Great Dipper – Transistor emitter-dipper for the VHF’er …… WA0AYP 42

o A 20 Amp Power Supply – 20 amps for 20 dollars …… WA4SAM 48

o X Marks the Spot – A simple “no-holes” mobile antenna mount …… WA3AJD 50

o Go-Go-Mobile – A low-cost mobile antenna for 40, 20, 15, and 10 …… W6IEL 52

o The Front-to-Back Ratio of an Automobile – Radiation patterns of different antenna mounts …… G3BID 56

o Beginner’s Beam for 10 Meters – Get ready for the band openings this winter …… VE1TG 60

o Simplified Printed Circuits – Making printed circuits at home …… K5IRP 65

o Designing Transistor Oscillators – If you’ve been having trouble designing transistor oscillators to fit your requirements, this article may be the answer. Most of the math has been eliminated by several labor-saving nomographs …… W1DTY 66

o Gus: Part 26 – Tristan de Cunha …… W4BPD 84

o Climbing the Novice Ladder: Part 9 – Judy and Joe receive their licenses …… W7OE 102

september 1967 (#84)

o The Synchronous Detection Process – If you must use AM, get the most out of it …… W3DUQ 6

o A 160 Meter Sidewinder – A sideband package for the low-band …… W6JTT 12

o Building Blocks – A 12 to 18 MHz receiver for VHF converters …… WB2EGZ 17

o VSWR Supreme – A compact VSWR unit that can be built into your rig …… W4BRS 20

o Dual-Band Use of Single-Band Beams – Get the most use out of those antennas …… W2EEY 26

o Grounded-Grid Filament Chokes – How to design and wind your own …… W6RET 30

o 200 Hertz CW Filter – Maximum selectivity with telephone coils …… K7UDL 34

o Observations of Note by a VHF Addict – Hilltopping in Southern California …… WB6JLC 37

o Getting a Start in Amateur Television – Off on the right foot …… WA2EMC 40

o A Compact Linear Amplifier – 500 watts in a small package …… VE2AES 44

o Cathode Keying Filter – Getting rid of key clicks …… W6BLZ 48

o A Simple Resistance Bridge – Precision resistance measurement at low-cost …… VE3AHU 51

o Compact Heat Sinks – Using copper pipe caps for cooling semiconductors …… Ives 52

o Evaluating Antenna Feed Systems – Using time domain reflectometry …… W7QAG 56

o Cheapskate’s “On the Air” Sign – Eliminating in-shack interference …… WN3EWV 62

o Relay Energization in Fixed and Mobile Equipment – Just what the title says …… VE4RE 64

o How to be a Ham – By Really Trying – It isn’t hard if you try …… VE3GLX 66

o Do-it-Yourself Mobile Mount – Nice looking but simple floor mount …… W6APE 68

o Washing Out Your (Antenna) Shorts – Keep road salt and water out of your mobile antenna …… W3RZD 70

o A Polarity Sensitive Meter for the Sightless – Used for checking diodes, capacitors, and resistors …… WA2BCX 72

o Climbing the Novice Ladder: Part 10 – FN offers Judy and Joe some sage advice …… W7OE 74

o Trindade Island DXpedition – The DX-capades of PY2BZD/PY0 …… PY2BZD 82

o Gus: Part 27 – Gough Island …… W4BPD 84

o DX’ing – How to get the most out of chasing DX …… W2NSD/1 88

o The Knight-Kit KG-663 Low-Voltage Power Supply – An excellent power supply for the ham shack …… W1DTY 94

o Heathkit SB630 Control Console – Handsome mate to the SB301 and SB401 …… W2DJL 96

October 1967 (#85)

o Incentive Licensing …. 2

o The 2Q Receiver – 22 transistors; FETs in the front-end …… W5ETT 8

o The Really Rugged Rotator – For big arrays in bad weather …… VE1TG 14

o Designing Permeability-Tuned Coils – Simple and accurate …… Marovich 20

o A FET Converter for 40 and 160 – Beats vacuum tubes …… K6DBQ 26

o West Coast VHF Antenna Measuring Contest – At the 1967 VHF Convention in Fresno …… W1DTY 30

o A Slow-Scan TV Picture Generator – Another simple approach to slow-scan …… K7YZZ 34

o VHF Log Periodic Antennas – Plus a fully designed LP for 432 MHz …… K4GYO 40

o The Dual-Gate FET – Using the 3N126 in a SSB generator …… W1OOP 48

o Getting the Most Out of Your Receiver – Read and heed …… W0HJL 50

o The Silent Shepherd – Emergency at midnight …… W6OQY 52

o Torticollis and All That Jazz – A simple pain in the neck! …… WB6QOT 57

o All-Band Rotatable Dipole – 80 through 10 with one rotatable antenna …… WB2WIK 60

o Simple Gamma Match Capacitor – Not a new idea, but a good one …… K0UTX 64

o Personalized QSLs for Greater Returns – Are you having trouble getting the QSLs for WTW? …… W6NIF 66

o Pioneer DX – Chasing DX in the early days …… W7OE 70

o DX’ing – The right approach helps …… W2NSD 74

o Gus: Part 28 – Sir Gus lands on Bouvet …… W4BPD 85

o The Knight-Kit T-175 6/10 Meter Linear – High-performance for the band openings this winter …… W1DTY 90

November 1967 (#86)

o Integrated Circuit Frequency Counter – A 100 kHz counter for less than $50 …… W0LMD 6

o 2 Kilowatt PEP for Six Meters – A complete transverter for 50 MHz …… K6RIL 12

o A Pulse Generator for the Amateur – Versetile test equipment for the shack …… W6GXN 20

o Mighty Four on Six – Low-cost transistor transmitter for six meters …… K9VXL 24

o Incentive Licensing – Complete story on our new regulations …… W1DTY 28

o Feeding the Cat Underwater – Experiments with underwater radio propagation …… K6BIJ 34

o Mobile Antennas for the Non-Mobileer – Using the ring-radiator antenna …… W2EEY 38

o Why Abuse Semiconductors? – The care and feeding of transistors and diodes …… VK7RG 42

o DC VTVM – A sensitive, high-impedance VTVM of simple design …… W2DXH 53

o 220 Wavemeter – Find your way around the forgotten band …… WA2TOV 60

o Choosing Accessories for the Novice Ham Station – What do you need besides a transmitter and receiver? …… W7OE 62

o Trim for Ten – Adding bandspread to your loading capacitor …… DL5AF 68

o The Longest QSO – A new world’s record …… WA3GEV 70

o Death of Amateur Radio – Food for thought …… WA8FVS 73

o Spook Up Your Club’s Civic Activities – Goblin patrol …… K4HKD 76

o Simple Modifications for the HW-12, 22, and 32 – Greater frequency coverage …… DL4XO 80

o Project Milk Wagon – You two can form a club …… 3C3FKY 82

o The Drake MN-4 Matching Network – Great for multi-band operation with single-band antennas …… W1DTY 88

o The Omega-T Antenna Noise Bridge – A new approach to antenna impedance measurements …… W1DTY 90

o The Comdel CSO-11 Speech Compressor – More punch in the pileups …… K1RA 94

o Six Hours with Blintz’ DXpedition – Journey to Jordan …… 4X8HW 98

o Gus: Part 29 – Bouvet Island …… W4BPD 103

December 1967 (#87)

o 250 kHz to 29.75 MHz Stabilized Converter – A phase-locked receiver with 500 kHz bands …… K5LLI 6

o Some Experiments With Stacked Beams – Getting more gain out of your array …… VE1TG 14

o Simple Antenna Mount for Satellite Work – An el-ez antenna mount using two rotators …… W4HJZ 20

o Strong Signal Interference – AGC modifications for improved cross-mod performance …… K6KA 22

o Charging Dry Batteries – An approach to longer-lived primary cells …… WA6NIL 26

o A Forty-Meter Vertical Array – Lots of gain for 7 MHz DX’ing …… K8DOC 30

o Hamateur Acoustics – One man’s sound is another man’s noise …… W3RZD 34

o A Workbench Clutter Filter – Get rid of that mess on your work bench …… WA6UVS 38

o General Information About Amateur RTTY – What it’s all about …… WA0OBJ 42

o Computer Card Construction – Use those surplus printed-circuit computer cards …… K1EUJ 48

o Station Accessory Control Unit – Put all your station controls in one neat box …… K6ZHO 52

o A True Parasitic Monitor – A no-power CW monitor …… K4FQU 56

o The Mini-SWR Bridge – Perfect for tuning up antennas …… W2EEY 60

o Yes, Old Timers, There is a Santa Clause – I’d mark that true on a true-false test …… W0HJL 62

o The Contest Caper – How to win contests…… K8KFP 66

o Jean Shepherd, WB4DOH -The piano protege …… Roberts 79

o Bmmmfff! – The information explosion …… G3KPO 83

o The Waters Band-Adder Antenna – 20, 15, and 10 with a 75 meter mobile antenna …… W0HJL 84

o Hallett Signal Saver – Top-notch shielded ignition system …… WB6KFI 86

o Gus: Part 30 – Return to South Africa …… W4BPD 91

1968

January 1968 (#88)

o IC Square-Wave Generator – Getting acquainted with Integrated Circuits …… WA4ZQO 6

o Tuning In on Bonadio’s Satellites – Strange noises on the air …… W2WLR 10

o Sideband Filters – The least understood pert of sideband gear …… WB2GYS 14

o The Two Meter Groundplane as a Gain Antenna – Gain where the action is …… K6MVH 18

o RF Insertion Amplifier for Two Meters – More drive for the final …… K1CLL 20

o 2 Elements Spaced a Quarter-Wavelength – Simple beam antenna for 15 meters ……W2EYY 22

o Wide-Band Baluns the Easy Way – Multiband balun ….. K4ZZV 24

o Hamming – The Navy Way – Deluxe morale booster …… K6GKX 26

o Fire in the Hamshack – Are you ready? …… K4SEL/DL5AF 34

o Diode Circuits Handbook – Special insert, 28 pages of diodes …… WA1CCH 1A

o RTTY In Holand and Belgium – Europe on RTTY and where to look …… PA0VDZ/ON8NC 64

o The Wolverine – 100 watts on all bands …… W6BLZ 66

o A Homebrew Operating Desk – A place for everything …… WB2WYO 74

o Novice Data – Do’s and don’ts handbook for beginners …… W6DDB 88

o Gus: Part 30 …… W4BPD 114

February 1968 (#89)

o An Integrated Circuit Electronic Counter – A useful piece of ham gear …… W1PLJ 6

o How Come? – A good question …… W4YM 14

o An Amateur Tries ICs – The uses of integrated circuits …… VE3DAN 16

o 100 kHz Thin-Line Pulse Generator – Frequency standard with ICs …… W2DXH 24

o The Nurture and Care of a Junk Box – Selective collecting …… W0HMK 30

o How to Plan Your Own DXpedition – DXing in style and comfort …… W4PJG 34

o How is Your Club Paper – Good or Bad? – Make the readers notice …… K6GKX 38

o High-Quality Hybrid Receiver – Restoring the lost art of homebrew …… VE1TG/VE1ADH 42

o Tips for the CW Contester and DX’er – From one of the great CW contesters …… KH6IJ 50

o How to Publicize Your Club – Getting activities into print …… K4HKD 54

o Technical Aid Group – Where to look for help …… 58

o The Quartenna – How to shrink a Cantenna …… WA6OBH 64

o Hydronics or Radio? – Underwater propagation …… VE7BS 66

o Electronic Temperature Measurements – Determining temperature rise in components …… K6EAW 70

March 1968 (#90)

o Narrowband Frequency Modulation – Using voltage variable capacitors …… WB2CPG 6

o Transmitter Keying with Transistors – Solid-state project for the CW hound …… W6HEK 14

o The Mini-Mitter – The smallest transmitter? …… W7OE 18

o Receiver Front-End Protection – Protection for the transistor receiver …… W6AJF 20

o A Regulated DC Voltage Divider – Reducing voltage while maintaining regulation ……W5NPD 24

o QSL Manager – How to alienate your postman …… W4NJF 26

o 160 Meter Flat-Top Antenna – Long antenna on a short lot …… W3WPV 30

o Go Ahead – Run Away to Sea – Make a vacation pay …… K4UDP 32

o Operation Deep Freeze – 10 years in the Antarctic …… W6GKX 38

o Crystal Shopping – Double duty for X’tals …… WA4UZM 44

o Witching for Better Grounds – One for the skeptics …… W7CJB 46

o The Ham – A view from the XYL …… Day 50

o Getting the Most Out of Link Coupling – From the VHF point-of-view …… K1GBF 54

o More on More Contacts From Within – Antenna hints for apartment dwellers …… K3RXK 54

o S-9-Manship – How to put a man down …… W6DFT 56

o The RF Patch – Patch panel solution to an old problem …… W6JTT 58

o 73 Certificates – You’d be surprised how fast they move …… 60

o Transceiving with an Outboard Receiver – Making the most out of the receiver …… WA2APT 62

o A Ham’s Shack is His Castle – Wanna bet? …… W6LNG 64

o Converting the TA-33 Jr. to a Full-Sized 15 Meter Beam – A solution to the sun spot cycle …… K4ELB 78

o The Scientific Method – Hoo-boy, that smarts …… Foster 82

o Getting You Higher Class License – Part 1 – A new approach to studying theory …… Staff 92

April 1968 (#91)

o The Vidicon Minicamera – Using low-cost, high-quality semiconductors …… W8TYY 6

o The Little Gem Fuse Tester – There’s still time to use this one April 1st …… W7CSD 15

o Methods of Transceiver CW Switching – Six circuits to achieve easy CW operation …… W1DCG 16

o The Polar Key – Homebrew keyer using inexpensive polar relay …… K4YWS 20

o Checking Your VSWR Indicator – Are you sure your SWR bridge is trustworthy? …… W5EHC 22

o Video Mixing Amplifiers – Producing a good composite video signal …… W8VCO 24

o A Solid Dead Man – Don’t let the wind get your tower down …… WA1ABP 30

o VHF Operation by Remote Control – Q5 S9 from any location …… W6MVH 32

o An Invisible Antenna – A new antenna theory …… W1EMV 42

o Using Your Electromagnetic Wave – Communication as it should be …… WA5HPV 44

o ITV Got You Down? – Getting rid of the buzz-saw …… WA7CSK 46

o The YF Fights Back – If you can’t lick’em, join’em …… WA6SPT 48

o A Career in Electronic Engineering – Areas where engineers are needed …… W6JTT 50

o What is YOUR “Amateur Q?” – How well do you know the FCC regulations? …… K3STU 52

o And They Called “Mother Shipton” Crazy – Remarkably prophesy from 500 years ago …… K4FQU 56

o Recovering “Lost” QSLs – Helping the post office help you …… K6UMV 58

o Project MOONRAY – Amateur radio on the Moon in 1970 …… 60

o Audio SSB – A new use for an AFSK oscillator …… K6ICU 64

o Installing a Transceiver in a Rented Car – Wonder if Hertz would approve? …… G3BID 66

o Preventive Maintenance – Curing problems before they start …… K3KMO 70

o You Can Pass The Extra – Or so the man says …… K6YA 73

o Use of Q-Multiplier to Increase Intelligibility of Received Voice Signals …… Ives 74

o Crystal Etching Tips …… W4AYV 76

o Take Uncle Alf’s Advice – Uncle Alf talks about coax baluns …… W6NIF 86

May 1968 (#92)

o The UFO Network – Setting up to track the whetever they ares …… W2NSD/1 2

o Practical Miniature Antennas for 80-10 Meters – Only 80 inches for 80 meters! …… W8VVT 6

o The Diamond Array – One-element 40M quad which also works on 20 and 10 …… W6LLN 10

o Why Not? – Why not put a VHF yagi beam on your low-band beamm boom? …… W6HGX 11

o Do It With Wire – A wire antenna fed with twinlead that works all bands …… K3QKO 14

o Durable Gamma Match – Clever idea by one of our DX newcomers …… K4IIF 16

o How to Hang a Dipole – Including a haywire bridge to get it right …… W2DXH 18

o Matching Stubs – SWR depends on matching the antenna to the feedline …… WA5STM 24

o Ten Meter Dipole – Simple, effective, wideband vertical dipole …… W6BLZ 30

o Duo-Vee Beam – 10 and 15m beam on one boom with no interaction …… K1UFQ 32

o Computer Design of Beam Antennas – Great for those of you with a nice computer handy …… WA4WWM 34

o A Primer of Basic Antenna Theory – This should count towards the Advanced study course …… W6ZGO 40

o 73 Hamfest for July 6th – Come on up to New Hampshire end have some fun with us …… W2NSD/1 49

o Triangular Loop Beams – 40 through 10 meters. These may become very popular …… W6DL 50

o The Selcal – An RTTY stunt box using ICs …… K8ERV 58

o Hardware Store Groundplane – Flanges, nylon pipe, aluminum tubing, it is all there …… WA4UZM 71

o Are Phone Patches Legal? – If we tell you here you won’t read the article …… K6MVH 72

o Amateur Radio and Public Service – Getting set up on 7255 for emergency traffic …… W2CFP 74

o Microfilm Your Magazines – How to do it …… WA4HRX 76

o Advanced Class Study Course – Part 2 – Simple way to know your theory instead of memorizing answers …… Staff 82

o Technical Aid Group – These fellows will answer your technical questions …… Staff 92

o A New Quad – The Reginair 321 quad …… WA1BUN 98

June 1968 (#93)

o Transformer Tricks – 15 uses for odd transformers …… W4LLR 6

o The ARC-5 Transmitter/Receiver – A new slant on an old favorite …… WB6BIH 10

o Modifying the BC1206 – Using a Japanese transistor Radio …… W6GXN 14

o APS-13 ATV Transmitter – Tail-end Charlie rides again …… W6ORG 16

o Varsatile Variable Power Supply – A simple bench supply …… W6SLP 18

o Low-Cost Conversion of Surplus Oscilloscopes – Using the IP/69/ALA-2 …… W8JZI 22

o Crystalize that FM Rig – Where to find the right xtal! …… K9STH/5 24

o The Dollar-Fifty Super Nifty – A nifty CW filter …… W3KBM 30

o Restoring Old Equipment – Or making the family think you got a bargain …… W9NLT 32

o New Life For an Old Work Horse – The 75A-1 isn’t exactly surplus, but …… K9STH/5 40

o Modification of the TRA-19 – Amplifier cavity to 432 MHz …… K6RIL 44

o Salvage Those Old Transistor Radios – Tricks with radios and recorders …… K0VQY 46

o Counter Connections – How to use a counter once you get one …… W3GKP 50

o Labels for Homebrew Gear – Making use of your typewriter …… W4LLR 48

o Review of the Amphenol Millivolt Commander – A fine new volt ohmmeter …… W1EMV 56

o Poor Man’s Mil Specs – Identifying military spec numbers …… W4WKM 58

July 1968 (#94)

o Let’s Build a Tower – Sturdy wooden construction …… VE1TG 6

o Why Not a Tilting Tower – With this method, why not? …… W6DL 12

o 40 ft Non-Conducting Sky Hook – Making the most of a phone pole …… K7VBQ 16

o Burn Prevention – Asafe place for the hot soldering iron …… VE3BUE 21

o The Beam Pole – Another phone pole idea …… W7GBJ 24

o Tilt That Tower – Using the house for leverage …… W2AJW 28

o Panel Gap Filler – Another idea to fill the holes …… Ives 33

o IC Audio Amplifier and Oscillator – ICs are here to stay …… W7AKS 34

o The New Tower – Battling the building inspector …… WA2GXT 37

o New 160 Meter Allocations – Easy-to-read chart to give all the information on the new rules …… Staff 39

o Some Audio Thoughts – Versatile modulator unit …… W3KBM 40

o DB – Wait ’till you see the illustration …… WB2PAP 42

o More on Xtal Etching – Using readily available chemical …… K6GKP 50

o Writing for Service Information – Communicating your problem …… K2PTS 52

o Care and Feeding of a Ham Club – Part 1 of a new series …… W5NQQ 54

o Photographic QSL – Do-it-yourself QSLs …… W3RZD 60

o WTW Report – Gus gives full listing of awards …… W4BPD 62

o UFO Net Information …… W2NSD 64

o 73 Subscription Premiums – Lots of goodies free …… Staff 70

o The Anatomy of a Pile-Up – DXing …… G3BID 74

o Advance Class Study Course – Part 4, transmission lines and SWR …… Staff 76

(#95)

o Terminated Grid Linear Amplifier – An extremely stable configuration …… W1DIS 6

o A Unique Transistorized Transverter – Using a conventional transformer …… WA4JVE 12

o Photographic Printed Circuit Process – Printed circuit etching made easy …… W6AYZ 14

o A Simple Method of Double Sideband Conversion – If you must go DSB, this is as easy as any …… K5LLI 18

o Basic HF Receiving Converters – Getting more from your HF receiver …… WA4UZM 22

o 3 on 20 for 15 – $15 dollars, that is. A 20 meter beam …… WA4YVQ 24

o The Mini-Boom Quad – An efficient Quad with spider array …… VE6FS 26

o The Collinear Resurrected – End-fire array without sacrificing performance …… WA1DVB 28

o A Microphone Pre-Amp Clipper – More speech power without distortion …… W2EEY/1 32

o Review: The Heath IM-17 VTVM – A versatile piece of test equipment …… W2TQK 34

o Hamwriting – A veteran writer tells how …… K6MVH 36

o A Grounded Grid Linear Amplifier – 3.0 through 38 MHz in five steps …… WA6WUI 42

o Displaying QSLs – A unique display method …… VE3BUE 48

o Care and Feeding of a Ham Club – Part 2 – A series to save the club …… W5NQQ 50

o Advanced Class Study Guide – Part 5 – Receiver operation …… Staff 54

o A $2.00 Phone Patch – Inductive coupling makes it legal …… W6TRU 64

o Trapping Strong Signals – Making the most of your receiver …… K6KA 68

o Review: The Hustler 4BTV Vertical – An antenna for small space …… W6AJZ 70

o High-Quality Hybrid Postscripts – More on this fine receiver originally shown in February 1968 issue …… VE3GFN 72

o How to Pass the Extra – By Learning – Overcoming the psychological block …… WB6BIH 74

o A Military Career for the Ham – The Armed Forces is looking for you! …… G5ACY 76

o I Rode With the CB’s – How the CB’ers are steeling our thunder …… K4HKD 78

o Transit Time – So? – A just noticeable difference …… K9UYA 80

o Pilot Lamp Life – How to prolong the life of the lamps …… WB6ZOA 84

September 1968 (#96)

o Going VHF – In the Mobile …… W9HDF 6

o Communicator Reborn …… W6HCX 14

o 432 MHz Amplifiers …… W6AJF 16

o Quick Converters …… W9NLT 20

o So You Think You’re on Frequency …… K6MVH 27

o Parallel T-Network Design …… Kyle 30

o Starting Off on VHF …… WA1GEK 32

o Learning – The Radio Code if You’re Over 30 …… W1EZT 34

o A Review of the Heathkit SB-110A …… Matthew 60

o 1296 Megacycles – 1968 …… K2TKN 42

o The VK3ATN Moonbounce Rhombic …… W2NSD/l 44

o K2US: 1968 Ham Radio Expo …… WB2DLW/K3AFW 48

o Appliance Operators – Please Turn Page …… WA4WAI 59

o Six Meter Transceiver …… W2AJW 62

o Rejuvenating Old RTTY Ribbons …… W5AQN 67

o Two Sidebands From the Tower …… W4KAE 70

o Getting Your Higher Class License – Part 6 – Transmitters …… Staff 74

o The Care and Feeding of a Ham Club …… W5NQQ 86

o Tables of Electronic Symbols for 73 Contributors …… 94

October 1968 (#97)

o A Collection of Thoughts on Receiver Design – Tips for the builder …… WB6BIH 6

o 3 Tube Super-Het Short Wave Receiver – Performs like six tube hearing aid …… W6ELJ 14

o The MO Receiver – This one will have you burning the midnight oil …… K5WYG 30

o Project Facsimile Antarctic – Morale booster in the cold Continent …… K6GKX 28

o A High-Performance Receiver for 2 Meters – A VHFer’s dream receiver …… W2HUX 30

o Ham Workshop – The bare essentials to work on the gear …… W0PEM 38

o New Life for an Old Circuit – Reviving the Yackar VFO …… Thorpe 40

o VHF RF Noise Suppression – Mobile noise, good tips for HF too …… K6ZFV 44

o Reviewing the SR-400 – Hallicrafters la test transceiver is great …… W2NSD/1 48

o FET Converter for 50 MHz – 6 meter converter that works …… WB6YVT 52

o Neutralization – What’s neutralization all about …… K6EAW 56

o Advanced Class License Theory Course – Part 7 – More on transmitters …… Staff 58

o More on Receiver Blocking – The Pro does a follow up on a previous article …… K6KA 72

o Regenerative Detectors – How they work …… W1EZT 76

o The Q-Q Meter – The measurement and importance of “Q” …… WB6IBS 82

o Save That Cordless – An untapped source of parts for the shack …… W3GKP 88

o 2 Meter Ground Plane – Never underestimate the ground plane …… WB6BIH 91

o Improving Stability in Older Receivers – Good tips on making them solid …… W6NIF 94

o Care and Feeding of a Ham Club – Part 4 – Public opinion …… W5NQQ 98

o 6 Meter Ground Plane – Novel construction idea …… W8JZY 102

o VHF Monitor – Keeping in touch with the group …… W4KAE 104

o Simplified dB Leveling – ALC-AGC Circuits …… W2DUD 106

o FMing a VFO – FM doesn’t have to be crystal …… WA6UFW 110

o FET Pre-Amplifiers – Boosting receiver performance …… W2EEY/1 112

November 1968 (#98)

o Computer Card Transmitter – Plug in components …… K1EUJ 6

o Crystal Filters – The heart of SSB …… W3RET 12

o Trouble Shooting Solid-State – Modern day problems solved …… K3PBY 16

o IC Frequency Counter – Easy to build counter for ham applications …… WB6IBS 20

o C.V. Transformers for Ham Applications – Keeping the voltage constant in the shack …… WA9CQN 28

o A Space Communications Odyssey – It isn’t going to be easy to keep in touch! …… K6BW 32

o Surprize in the Skies – Pulsars. What are they? …… W1EZT 36

o Using Thin Wire Antennas – Fooling the landlord …… W2EEY/1 42

o A 7 MHz Transistor Transmitter – An all-transistor rig for 40 …… WA6JND 50

o Double-Conversion of the BC348M – Surplus receiver made over for SSB …… VU2TV 54

o The Gentrac – A do-all test set for receivers …… W6AJZ 58

o Harness your Wiring – A professional wiring job for homebrew …… K5LLI 66

o Copper Wire – The forgotten component …… W1EZT 70

o Who Says You Can’t Take it with You? – College days are here again …… WB6ABM 76

o The Thermistor – Temperature measurements …… WB6BIH 78

o Using SCR in RTTY Series-Wound Motor – A short-short story …… W8NSO 82

o New High Voltage Transistors – A list with properties …… K3VKC 84

o Project Facsimile Antarctic – Part 2 – Choosing Miss Antarctica …… K6GKX 86

o Are You Really Ready for the Next Emergency? – A series of tornados strike …… W0DDW 88

o Advance Class License Study Course – Part 8 – Transistor principles …… Staff 92

o Ipecac Works on LIDS – Hoo-boy, that smarts! …… K1YSD 102

o Instant Drilling Rig for Grounds – Water power drill …… WA4VQR 108

o Care and Feeding of a Ham Club – Part 5 – More on money raising …… WSNQQ 118

December 1968 (#99)

o Using the First Ham Integrated Circuit – Includes several useful circuits …… W6DNS 6

o Mouse Tunnels – Hiding the wiring …… K6HKB 12

o Circular Modulation Monitor – A new scope …… WA9IGU 14

o The Mini-Square – Square wave in miniature …… WB6BIH 16

o Add-On FM Test Set – Simple to complex in easy stages …… K9STH 18

o The Elusive H Parameter – Not so elusive now …… WB6BIH 20

o Zero Temperature Coefficient VFO – Sure stability …… W6WQC 24

o 75 Meter DSB Rig – A step in the right direction …… W3KBM 28

o A Novice FET Converter – A good building project for the Novice …… K6DBQ 36

o Transceiver Review – Photos and information about the transceivers now available for Christmas …… Staff 40

o 30 Watt Transistor Transmitter – All transistorized! …… W5PAG 46

o Care and Feeding of a Ham Club – Part 6. Do something interesting …… W5NQQ 52

o Getting Your Higher Class License – Part 9. More on transmitters …… Staff 56

o Christmas Gifts for Hams – Gifts under $25 …… Staff 72

o Three Black Boxes – What constitutes a station …… W5EHC 82

o Facsimile and the Radio Amateur – What is facsimile, and how to do it …… K6GKX 84

o Why SSB? – Required reading how SSB is different …… K3PUR 86

o Limitations on Antenna Reciprocity – The answer to one way skip? …… WA4UZM 92

o Index to Articles Appearing in 73 in 1968 – Cumulative index. Where to find it …… Staff 98

1969

January 1969 (#100)

o The Suppressor Compressor – The neglected grid …… W3KBM 6

o Putting the HW-12 on 160 Meters – With the new rules this is important …… W8FGB 12

o Tuning a Parasitic Beam – This can really be fun …… W1EMV 16

o Does Your Linear Need Help? – This could solve the problems …… W9VEY 22

o Some Thoughts on Voltage Control – A subject of some importance …… VE4RE 24

o Solid-State Monitoring – A Heath modification of merit …… W6JDD 26

o The Two Meter Transistor Transmitter – Plus one tube …… K5WOR 28

o The Yasme World-Wide DXpeditions – Starting with Danny …… Yasme 32

o The LC Power Reducer – Power reduction under same load …… W2EEY/1 38

o Why Ham RTTY – Verrry interrresting …… WA8DCE 42

o Panadaptor/Spectrum Analyzer – How to lose friends by being honest …… W6DTR 44

o The Six Net – Transistorized receiver …… W5JSN 48

o The Operating Console – A place for everything in its place …… W6GDP 52

o RTTY Auto-Start – Why monitor? …… W6ORG 56

o Oscillator Frequency Shift Calculations – Calculating drift …… WA6DPD 58

o A 10 Minute 40 Meter Rig – On the air in a hurry …… WB2YOJ 62

o UFO Interest – Not restricted to hams …… K6MVH 70

o Quad and Easy QRP – Low-power can be fun …… WB2YRQ 72

o Full Sequential Switching – Using simple relays …… G3KPO 74

o Drake R4A and T4X – Not new, but still great …… WB4EFA 76

o Operating the Two’er – Some hints for making it better …… W6BLZ 78

o The S.O.B. – Sightless Operator’s Bridge …… WA5SWD 82

o Getting Your Advanced Class License – Part 10. The last of this series …… Staff 84

o Care and Feeding of a Ham Club – The last part of this series …… W5NQQ 96

o European VHF – They use the bands too …… DL5QN 100

February 1969 (#101)

o A Fast Scan Vidicon in Slow-Scan Camera – More on ATV …… K7VZZ 6

o A Cheap and Simple Linear Amplifier – More watts per dollar …… WB2PTU 10

o The Beatnote Basher – A selective audio filter …… WB6JXU 12

o The Unijunction Transistor – What they are, and what they do …… VK3ZRY 14

o What’s Out There – Probing the universe for life …… W1EZT 24

o Velcro – A new material with ham potential …… K3AQH 32

o TVI Suit – Ham sued for one million …… Staff 36

o >Nikola Tesla – The master of electrical energy …… Elkhorne 38

o Go Mobile – Some pointers for new mobileers …… WB6ACM 58

o Getting Your Extra Class License – Part 1. AC-DC theory …… Staff 60

o Is it Cold Down There? – A common question in the Antarctic …… K6GKX 74

o Ampheham – Building project for odd connectors …… Staff 76

o Be a Good Ham, Not a Bad Egg – The fine art of lending and borrowing …… W5NQQ 80

o 73 Visits FAA Center – The electronic complex for aircraft control …… Staff 82

o CW Only Here, OM – CW can be fun …… W6EKN 90

March 1969 (#102)

o Modifying the TCS Transmitter – A useful piece of surplus gear …… K3UUL 6

o A $4 Compressor Pre-Amplifier – More speech for less money …… W2EEY 10

o Reactance or Impedance – Answers to a lot of old questions …… K9ZPZ, K9DRB 14

o Weather Snooper – Eavesdropping on the aircraft WX frequencies …… K6ZFV 18

o The Charmin’ Keyer – The solid-state keyer …… W9HXM 22

o Amateur Radio Knows No Borders – Saving a life across the Iron Curtain …… Staff 32

o A Better Balanced Modulator – A good project ……WA1FRJ 36

o Adjustable Power Supply – A must for building projects …… WA0ABI 40

o Save Your Money – Salvaging transformers …… K6GKX 42

o Transistor Oscillators – A variety of circuits, old and new ……W9ZTK 44

o Heath HW-18 Review – 160 meter transceiver …… W8QUR 50

o Cool It – Blowers to cool the tubes for UHF …… K9CNN 54

o A New Support for That Beam – Using phone pole …… K1MYV 56

o The Case for the Half-Wave Feed Line – Care and feeding antennas …… W5QRJ 58

o Putting Creativity to Work – Making household articles work in the shack …… VE3BUE 62

o The Lamb Dyer – An amusing story …… WA1ABP 64

o IF Alignment – A simple chart method …… K8ZHZ 65

o Charlie’s Broken Dream – Don’t be a “Charlie” …… WA8VST 66

o Kluge Tube – Resurrecting an old power amplifier, maybe …… Staff 68

o For Those Who Think Small – And other tips …… WA4VQR 73

o Surplus Conversions – Where to find conversion information …… Staff 96

o Surplus Advertising Catalog …… Staff 97

o Getting Your Extra Class License – Part 2. Amplifiers ……Staff 128

April 1969 (#103)

o Dual-Channel Oscilloscope Pre-Amplifier – Convert your scope to a $1000 dual channel job. Save money …… W3ZZY 6

o Simplest RF Pre-Amplifier – Simple, new, very effective. Works, too …… W1EZT 10

o Education and Ecstacy – Reprint from LOOK Magazine re the “magic” of ham radio …… Leonard 14

o Push-to-Talk – Converting the Two’er for this valuable function. Beats LSMFT …… VE3ETJ 16

o Variable DC Load – For testing power supplies and things like that. You never know ……W2AJW 18

o Single-Side SWR Bridge – Complete with plan for etched circuit board …… WA5SWD 22

o 100 kHz Marker Generator – Used to mark frequencies up to the 144 and 220 MHz bands …… W7CJB 24

o One Technique to Avoid That Routine QSO – Desperately needed information for many phone and CW ops …… W6EUV 28

o Minimum Cost Silicon Semiconductor Survey – Long article, but transistor buffs should flip over it. Flip …… Zaranski 30

o Heath SB-610 Monitor Scope Modifications – Makes a good piece of gear even gooder. You need one …… K6SDE 42

o VHF FM Station Control – Switches two channels in each of two bands …… WA7EVX 46

o A Simple Portable Rig for Six Meters – Two transistors and one IC modulator and head for the hills …… WB6BIH 48

o Using FETs in Burst Generators – Now what in the devil is a burst generator? …… K3VKC 50

o Two Meter Converter – For the Swan 250… Or any other receiver or transceiver …… K3VLQ 52

o VSWR, An Outmoded Parameter – Adding fuel to the fires of controversy? Or calling troubled waters? …… VE2AXQ 55

o Testing the Drake VHF Converters – The new Drake converters for six and two are grrrreat! …… WlEMV 56

o About Loading…. Which Loads What? – Can an antenna really load a rig? Or does the rig load the antenna? …… Staff 58

o 0 Cycle Filter – The ultimate in selectivity …… LX5SM 60

o Camp Albert Butler – You’ve read the ads… Here is what it is all about …… W4UF 68

o Extra Class Study Course – Part 3 – Part 3 of 10 parts. Good luck …… Staff 70

o Learning the Morse Code – A new and much faster approach to the code …… K9AAU 85

May 1969 (#104)

o Who’s Who in Amateur Radio – Celebrities in our ranks …… W8GI 4

o Stacked Gamma Matched Turnstile – About 10 dB on 2m, omnidirectional …… WA9LPC 8

o VHF Vacation Special – 2m slot antenna made out of aluminum foil ……W2ZRX 10

o S-Unit Attenuator – For calibrating S-meters and antenna gain …… WA5SWD 14

o In the Beginning – Not for serious amateurs or heat patients …… K1YSD 20

o Don’t Kill Your Generator – Just wound it a little, maybe …… W1EZT 24

o Working DX Without Six Elements – Persistence and sneakiness substituted for power …… K5PAC 26

o The Short-Vee Antenna – 10-15-20m, 56′ on a leg and it works …… W3FOJ 28

o The Little Wonder – 80-10m antenna… Looks a lot like the Joystick …… W5ZBC 30

o Easy Tuning of the Quad – Multi-element quads can be awfully difficult …… W4AZK 32

o The Antennascope – An effective tool. It’s okay if you know how to use it …… VE3CEA 36

o Two on Top – 80m vertical which tunes both ends of the band ……W6AJZ 40

o Measuring Antenna Gain – You don’t just ask around for signal reports …… W2EEY 42

o QRP – A New World To Conquer – Where 1.000 watts is a full gallon …… W6TYP 46

o Report on The Galaxy 550 – Great new transceiver…Read all about it …… W6AJZ 48

o Feeding & Tuning Three-Band Quad – Boomless quad, novel approach. etc …… WA4VWY 52

o To Patch or Not to Patch – Here’s the latest news on patching …… W5LHG 56

o Direct-Reading SWR Indicator – Tired of switching back and forth? Lazibones …… K3WRW 60

o Asymmetrically Feeding Long Wires – Strange things happen when you move the feed around …… W2EEY 62

o Tests the James Research Units – And finds them outstanding and mild …… WlEMV 13

o Compressed Vertical for 160 – If you have room for a 120′ tower pass this by …… W6FPO 70

o Class A Transistor Amplifier Design – Seven steps to total and complete success. Probably …… WA5SWD 72

o $4.98 Novice Special – Why spend more for a nice 15m antenna? Why not? …… WA7CSK 74

o How to Fly Your Kite – Simple 160m antenna for Field Day or expeditions …… E14R 77

o In Search of a Better Angle – Angle-of-radiation is of critical importance. Read …… K9YOE 78

o FSK Exciter – Another bone for the RTTY fiends …… W4LLR 84

o Telephone Beeper – Handy gadget for the new phone patch laws ……W6BLZ 88

o KW Dummy Load Cheap – Start using this instead of your antenna …… WB2PTU 92

o Mini-Bomb – Another of his little 10 kW linear amplifiers, almost …… W0SKY 94

o DX From DL Land – What’s it’s like over on that end …… DL4BR 96

o Phonetics for the Pileups – How to get your call letters through the mess …… KH6IJ 98

o Extra Class License Course – Part 4 of the Extra Class Study Course. Learn ….. Staff 100

o Economy Chronometer – Some hams are pretty doggone cheap …… W0EDO 118

o 4×150 Socket – Another shortcut for the cheapskate ham …… WA3AQS 120

o All-Band Curtain Array – 160-10m and only 112 feet long …… VK4SS 122

o How to Tune a Circuit – Figuring capacitance, and parallel capacitance …… K5LLI 123

o Mobile Antenna for Vacation USA – Not much trouble and works slickeydoo …… WB2WYO 130

June 1969 (#105)

o New Ways of Generating Microwave Power – New solid-state devices you should know about, probably …… K3PBY 3

o Modification of VHF Transmitters for CW Operation – Moonbounce? Aurora? DX? You may need to use CW …… K1OYB 12

o Mondo Hamme – Read slowly, this may be injurious to your health …… K1YSD 14

o Straightforward SSB for 6 Meters – Build this little beauty next week …… VE4RE 18

o The 432’er Solid-State – Bill Hoisington gets you on 432 the fast easy way …… K1CLL 24

o Six Meter FET Converter – You are not still using tubes in your converter? Reform …… W6RET 34

o Compleat AVC – Showing how much can really be done to improve AVC systems …… W8RHR 36

o Leaky Lines – Random thoughts by a random thinker …… K2AGZ 38

o Field Day Fever – Your Field Day should only work out as well …… VK4SS 40

o A Field Day to Remember – Field Day can be loads of fun; give it a try this year …… W8BVU 44

o Sunspots? Who Need’s ’em for Six Meter DX? – OK, so you can work ’em without sunspots too …… K7ALE 48

o DX Desk – DX ramblings, WTW news, and other rot …… K2AGZ 54

o Whipping Two Mobile – Make your own whip for two meter mobile …… K6ZFV 58

o Design of UHF Tuners Using Silicon Transistors – Some good ideas for you UHF’ers …… Sir 60

o Review of the Heathkit IT-28 Capacitor Checker – Heath does it again, as usual …… W0HMK 64

o How to Convert Your Receiver for Six Meters – Nice little converter for the 75A2, or any other receiver …… W8RHR 66

o Forty, Twenty, and Two – Nice simple vertical antenna using dielectric pipe unions! ……WA8IYL 70

o Review of the Caringella Compressor/Pre-Amp – We like it when readers review new equipment …… W2EEY 71

o ATV Video Modulator – One transistor is all it takes …… W6ORG 74

o VHF, FET, More Of – Pre-amps for 144 end 432 MHz, like for ATV, you know …… K6KTP 76

o Simple Scope for RTTY Monitoring – Good news for all you ‘ratts …… W6JTT 78

o Curtain Roads, Coat Hangers, and Control Links – VHF and UHF antennas from the closet …… K9STH 80

o Facsimile and the Radio Amateur – Part 2 – Answers to questions about fax …… K6GKX 84

o Extra Class License Study Course – Part 5 – We try to make it easy for you to get that ticket …… Staff 86

o Soft Solder Construction of Cavities and Lines – Makes those VHF machining jobs a cinch, almost …… WA9VFG 102

o Police Converter – Enjoy the thrill of listening to police calls, if it isn’t illegal …… K0VQV 104

o The Neglected Mini Vee-Beem – Small, and works like crazy on 10-15-20m. You read it here…… W0LBV 106

o Modifying a Tube Converter for FET – Makes a great improvement and doesn’t cost much…… W6OSA 114

o A Variable Resistance VFO for 6 and 2 – Transistors, PC board, and tuned from afar. Also very stable …… K9ALD 124

o VHF-Band Scanner – Watch the VHF bands with the ALA-10 …… WA8OIK 127

o Simple Converter for Slow-Scan TV and Facsimile – Ridiculously simple, if you want to know. Let’s get going …… W2LNP 130

o Confessions of an Appliance Operator – How to ad lib in spite of the state of the art …… W3ETQ 133

July 1969 (#106)

o Confessions of an Appliance Operator – This article is not for those of precarious health …… K1YSD 2

o The Ancient Modulator – AM? Yes. indeed… for 160M, 2M , etc. PP 1625 mod …… WB6BIH 14

o A Slow Scan Television Signal Generator – Things are really happening on SSTV. Now you can join the fun …… K7YZZ 16

o Six Meter Linear Amplifier – One kilowatt for 10 cents a watt. Why not be heard ? …… WA0ABI 20

o A New Way to QSL – Simpler. ..Less expensive … faster …… ZE7JV 24

o Kilowatt Amplifier for 420 MHZ – Sneaky water-cooled final that perks away as you talk …… W2CLL 27

o 4 Thirty Two’er – Converter and transmitting converter for 432 …… WA3AQS 32

o CW Can Get Your Goat – Rettuesnesnon …… K7TTA 36

o Rio O’Oro – DXpedition to EA9, complete with incredible frustrations …… W4QCW 38

o Trouble Shooting Antennas – Clever ways to find out what’s wrong from the ground …… W2OLU 44

o Six Meter IC Converter – Two IC’s, some tuned circuits and a crystal …… K2ZEL 46

o Radio Control Revisited – Model airplanes and their modern sophisticated control …… WlOLP 49

o Long Range Propagation Forecasting – Our expert explains his magic system …… Nelson 62

o Simple and Effective RTTY Terminal Unit – Two IC’s, two tuned circuits, and not a lot more! …… W6JMM 65

o Facts and Fads – More history uncovered with negligible reverence …… WlUSM 68

o An IC Audio Notch Filter – One IC, some resistors and pots, and presto …… W2EEY 72

o Converting the VRC-19 for VHF FM – Another attempt to boost the FM population explosion …… W6JTT 76

o The Greatest DX of All! – Solar flare detector …… K5JKX 80

o Intelligent Tube Substitution – Lovely article for tube fans …… K3LNZ 88

o Passive Reflectors for Amateurs – Most of us have wondered about this. Here is the info …… W7EEX 91

o Modification of the Heath HW18-3 VFO …… W8QUR 100

o Whip Antenna Add-Ons – VHF mobileers can get more gain and directivity …… W2EEY 104

o Two Meter Transistor Exciter – All transistor …… W6AJF 108

o Extra Class Study Course, Part VI – The new license is a snap with this series …… Staff 112

o A Stable HF VFO – Transistorized PC vfo for the DX-40, or any other rig …… WB6BIH 128

August 1969 (#107)

o Listen In on Two-Meter FM Repeater – Two little ole transistors in this simple monitor receiver …… K0VQY 4

o An FET Regenerative Receiver for 3.5 mhz and Up – Or use two FET’s and have a ball on the low bands …… W6OSA 6

o Multi-Channel FM Operation – Adding relay crystal switching to commercial FM gear …… WA7EVX 12

o The Case for the 5/8 wave Vertical – John makes a very good case indeed for this antenna …… W2EEY 14

o The Genesis of Radio Reception – History Lesson …… WlUSM 22

o An Introduction to Integrated Circuits – Let’s hope that an intimate relationship results …… WAlFHJ 26

o RTTY Tone Generator – Now you can mark and space up a storm …… W7FLC 32

o General Purpose Good-Bad Transistor Tester – Use less if all your transistors are in excellent shape …… W0KKA 41

o A Compact Two-Meter Transmitter – 2E26 output, phone …… W4UOY 42

o Measuring f t of Surplus Transistors – There are some enormous bargains around…… WA1FRJ 46

o Skylines for 160, Made Simpler – 160M antennas, from A to exhaustion …… WlEZT 49

o The Triac – New gadget you should know about. Wot next? …… K8TSQ 59

o 430-470 khz Sweep Frequency Generator – That’s khz, not mhz. This is for aligning i-f strips …… WA5SWD 62

o What Do You Think? – A special 73 metaphysical feature …… KlOXK 64

o Leaky Lines – Grumbles by Sam … err, Dave…… K2AGZ 66

o Magikey — for Automatic Didahs – Another automatic key and a good one – 2 transistors …… W3SGV 68

o FM = Fun Maker – Say, are you missing out on the FM bandwagon? …… K2PTS 72

o The SB100 on Six Meters – It’s possible …… WB4CXL 74

o Measuring the Frequency of Unmarked Crystals – Different simple ways of doing this …… K1EUJ 76

o Extra Class Study Course. Part VII – There is no excuse for failing the test if you read this …… Staff 78

o Now You Too Can Have A Deviation Meter – Don’t deviate too much …… K9STM 96

o Two Transistor 1500 Mile Transmitter – 1/4 watt super QRP rig for some excitement …… K0VQY 98

o Long Circular Quads – Our cover feature for moon bounce work …… WA4KAE 101

o Measuring FM Receiver Noise Figure – Taking the mystery out of this for FM receivers …… W8BBB 112

o Would You Like To Be A Broadcast Engineer? – No …… K2ULR 117

o Distress : The Amateur and the Coast Guard – What happens when an amateur passes along a distress call …… WB6UKX 122

o A Transistor Parameter Tracer – Useful, unless tubes come back again …… K3PUR 128

o What Are We Here For? – Sometimes, as we tune the bands, perhaps we wonder too …… W8RHR 134

September 1969 (#108)

o A DX Curtain for 15 Meters – An easy 3-4 db gain for you …… VE1TG 4

o Tunnel Diodes-Theory and Practical Application – Including a one transistor solar powered transmitter …… K8TSQ 8

o The Magic T – Method for running rf transistors in parallel …… Thorpe 14

o Uncle Will and News from the Poudre Valley – In dialect yet …… K0DVI 19

o Basic Soldering Outfit – Good Lord! Another article on soldering! …… W1EZT 20

o Light Naturally Runs Down – A special Scientific American type feature …… K1CLL 24

o Cable Pickup and Shielding – Keeping interference to an absolute minimum …… W2EEY/1 36

o WWV-Pioneer in Standards Broadcasting – Perhaps you’ve heard the catchy tune they play …… WA1AAU 39

o Basic Theory and Application of Transistors – Something you have always wanted to know …… WA1FHJ 42

o Series Gate, Solid State – Clipper …… K6ZFV 50

o Improving NC-300 SSB Reception – It was good but it can be very good …… W1OOP 52

o AFSK Generator – Crystal controlled, using digital IC’s no less …… W1ESH 53

o Transistor Transmitter Aspirin – How to keep from westernizing your transistors …… K0VQY 64

o Improvement of Phone Intelligibility by Base Clipping – Discussion of base clipping …… Ives 68

o Measurement of Meter Resistance – Making it possible to versatilize your meters …… WA6NIL 72

o Diode-Stack Power Supplies-The Easy Way – Instant operation of the Henry 2K and other rigs …… K6KA 74

o Transistor Testing Techniques – Testing with a vom without destruction …… W9KXJ 76

o 2 1/2 W Transmitter – Work the world with this three transistor rig …… K0VQY 78

o Neutralizing the HX-10 – Simple way to stabilize this rig …… W2PQG 80

o More Taylor Modulation – Remember that AM is still going strong on VHF …… DL5KS 84

o An Audio Sinusoid Generator – Two IC’s …… W5FOO 88

o Capacitor Usage and Electron Flow – Where to use what capacitor and why …… W0HMK 90

o What About FM? – We’ll have you on FM within the year …… W9VZR 96

o A Primer on Radio Propagation – If signals really do bounce, this is how it works …… WA1GEK 98

o Measurement of Percentage of Modulation – Of AM transmitters…… Granger 106

o Extra Class License Course, Part VIII – let’s get cracking …… Staff 108

o Big Signal-Good Looks – 3-400Z kilowatt Linear …… WA7AIA 124

o A New Vidicon Camera for ATV – Isn’t it time you tried your hand at ham TV? …… W8VCO 129

o Two More Transistor Testers – Handy jf you by your transistors by the bag full …… W9DJZ 133

o The FETCompressor – Audio compressor using two FET’s …… WA0IOC 139

o The Mike Mixmaster – Just like a broadcast station …… WA2YRF 140

o The T-60 Works Just Fine – Part XVII of our Novice Instruction Manual …… WA1GEK 142

o Leaky Lines – Not to be confused with columns in other magazines …… K2AGZ 144

o A Unique RF Plate Choke – Actually it isn’t really all that unique …… W6RET 147

o Modification of the ac Input on the SB-200 – Published by popular demand …… K3KMO 148

October 1969 (#109)

o A Super-Gain Antenna for 40 Meters – Nine db on 40 meters might be called “super” …… W4NVK 8

o DX Corner – WTW reports and other DX jazz …… K2AGZ 12

o FET Chirper – Signal source for peaking converters for optimum signal/noise …… K6QKL 20

o The Inside Info on Alexander Graham – Or how the telephone really works …… W2FEZ 24

o Leaky Lines – Similar to “Grumbles,” but by a licensed amateur, not a CB’er …… K2AGZ 28

o Scope Calibrator – Gadget you can build to improve your scope …… WlOLP 32

o Vidiots That Have Known Me – Sense of humor test. If you flunk, go back to 11 meters …… K1YSD 34

o The Protector – Protects your gear from sudden line voltage surges and interruptions …… WA0HKC 40

o Slower Tuning Rates for Older Receivers – Just like band spread …… W4RNL 42

o Positive Identification of Calibrator Harmonics – Keeps you off 6950 and other poor DX bands …… K5LLI 46

o Adapting AM Transmitters to FM – Good Heavens, is everyone going on VHF FM? …… WA4UZM 50

o CB Sets on Six – No need to junk that CB rig when you get your Tech ticket …… WB2FHW 52

o Proportional Control Crystal Oven – You need this sort of thing for moonbounce work and such …… W2CLL 54

o A Crystal Filter Phasing Control – Look at the i-f response in Fig. 10 and be amazed …… W2LT 58

o Grounded Grid Filament Chokes – You need these for linear amplifiers …… W2IK 62

o Equipment Cabinets with Style – Make it look commercial …… W2OLP 64

o VHF-FM: Part I – Advantages and practices. When are you going on FM? …… WB2AEB 66

o Bring Back the Q Multiplier – Invaluable for CW, notches out AM carriers, etc …… W8RHR 68

o Activation in VP2 – Anguilla Island activated …… VP2AC 70

o The CR Beam – Two meter corner reflector beam …… WA4FDQ 73

o The ARRL Board and Amateur Radio – An ex-ARRL Director evaluates the latest board meeting …… W7ZC 76

o A Cheap and Easy Power Supply – For a sideband transceiver …… K4FQU 83

o Extra Class License Course, Part IX – Modulation. We’ll have lots of arguments on this one …… Staff 86

o Ham Jamboree – Scouts hit the ham bands every October …… WB6IZF 108

o Operation Cat’s Paw – Whimsy …… W7ZC 116

o Knight V-l07 VFO for Six and Two Meters – Test report by a happy user …… K6GKX 123

o Careers in the FAA – Get on the government payroll …… W6JTT 124

o Youth Forum – Teenagers, arise! …… WA1GEK 132

November 1969 (#110)

o An Approach to Six-Meter SSB – Using an NCX-3 or other SSB transceiver …… WA1FRJ 6

o IF Notch Filter – For the last word in selectivity for your transceiver …… W2EEY 14

o Calibrate That Homebrew Dial – Accurate calibrations on any band …… K9STH 18

o Slow Scan Color Pictures – Using additive synthesis …… WA2EMC 20

o A Remote VFO for the HW32A – Split frequency operation simplified …… AP2MR 22

o Cheap and Simple for Six – Three transistor PC board converter …… WB6BIH 25

o The Mismatched rf Transmission line – High SWR makes no difference at all, hardly …… W5JJ 28

o BKX Bridge – RF bridge modelled after the General Radio bridge …… W8BKX 32

o Religion, Politics or Sex – And other QST-approved QSO topics …… W1DIS 40

o VHF-FM: Part II, Mobile Installations – Another chapter in our effort to get you on FM …… WB2AEB 44

o The Umbrella Antenna – Efficient antenna for 40-80-160M …… W2EEY 46

o Solid State 432’er Transmitter – Three transistor converter …… K1CLL 50

o Fascinating Fundamentals I: Electrostatics – Elektron is Greek for “amber.” …… W2FEZ 56

o Apollo TV & Radio – Details on the radio end of the moon trip …… WlFJE 58

o The Receiver – The Overlooked Piece of Test Equipment – Handy …… K1ZJH 60

o A Voltage Sextupler Power Supply – QST would never publish anything this Sexy …… W5NGX 62

o The Unikey – If you are a CW man, this’ll get you …… K9MLD 66

o Transistor Power Supplies – Robbing power from the rig or receiver …… K6KA 72

o Bias Design Without Curves – Transistors just won’t make it without the right bias …… WB6BIH 74

o FM Receiver Tweeker – Alignment gadget for FM receivers …… K6UAW 80

o A Mate for the Swan 350 – Adapting the Swan TCU unit to the 350 …… WB2MPZ 82

o The Ball of Wax – A Calibrator – 200- 100-50-25 khz calibrator on PC board …… W6GXN 84

o Electronic Variac – Using a Triac …… K9JSC 88

o SB-33 Modification – Adding a Calibrator, CW coverage, etc …… W4MNW 90

o Call Lettering Lunacy – Being about broadcast station call letters and such …… Moshcovitz 94

o Extra Class License Course, Part X – You should be able to pass the exam by now …… Staff 98

o SBE Improvements Made Easy – Bunch of ideas for the SB-34 owner …… W6JDD 122

December 1969 (#111)

o Quick, Easy, Dependable Transistor Diode Checker – For those who like checkered diodes …… W6ICC 6

o Did Samuel Morse Really Invent the Telegraph? – Telegraph? What’s that? …… W2FEZ 10

o Combination Dummy Load/Attenuator Network – Also doubles as a hot plate for your coffee warming …… W2EEY 14

o Tuned Filter Chokes – The Easy Way – Can your filter chokes carry a tune? …… W2OLU 18

o Hey OM – You’ve Got Carrier There – “Drop dead, you knit-picker.” …… W4NVK 22

o Bandswitching the Swan-250 and TV-2 – For both six and two meter operation lickety-split …… K3LNZ 26

o Cheap and Easy Selectivity – A CW audio filter for under $10. Cheap enough …… W5INU 28

o VHF-FM – Part III : Hand Held Portables – Part 3 in our effort to brainwash you in to trying FM …… WB2AEB 30

o Sunspots and the Ham – If you can’t beat ’em, join ’em …… WB2VFX 32

o SSTV – Lecture at the International Congress of Amateur Television …… SM0BUO 34

o Amateur Radio in the Classroom – Drives the kids right out of their everlasting minds …… K0HUD 40

o The Galaxy RV-550 Remote VFO – Test Report from an excited and happy user …… W6AJZ 48

o Calculation Made a Little Easier – Stuff our dumb high schools should have taught …… W1EZT 50

o Universal Dual-Frequency Crystal Calibrator – Using those new IC circuits …… W2EEY 58

o Versatilize Your Transceiver – Adding incremental tuning, a blessing in no disguise …… VE3ECU/W0 62

o Transistor Class B and C Power Amplifier Design – Slide rule lovers, arise and rejoice… an article for you! …… VK3ZRY 64

o Two for Mobile – Power supplies, not a love story …… K6ZFV 70

o Amateur Microwave Frequency Meter – 1 to 10 ghz. Simple, but necessary test equipment for ghz tinkerers …… K1CLL 72

o Audio Organizer – Nice companion unit for the station transceiver …… WB2WYO 77

o Converting a CB Transceiver to Six Meters – What else can you do with them? …… WB6BIH 78

o Extra Class License Course, Part XI – Oscillators …… Staff 82

o Topographical Maps for the Radio Amateur – For transmitter hunts, and other hammy applications …… W9VZR 102

o Fascinating Fundamentals III : Magnetism – An irrelevant dip into history …… W2FEZ 10

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