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73 Magazine


 
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73 Magazine (July 1962)

Description: 73 Magazine July 1962 (#22) The 420 MHz Band - Inside dope on this interesting band by real expert ...... W4HHK 6 Six Meter Nuvistor Converter - Designed to plug in Drake receiver, but will work with anything ...... K8NIC/5 12 VHF Construction - Heed well this article and you may save yourself a lot of misery ...... WA2INM 14 The Eico 720 on Six Meters - You just add a separate pi-net coupler and there you are ...... WA2KTJ 18 Finding True North - Handy if ...

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73 Magazine (August 1962)

Description: 73 Magazine August 1962 (#23) Coaxial Line UHF Pre-Amp - 420 MHz Nuvtstor pre-amplifier, pretty important at these frequencies ...... W9SEK 6 Improving the CC50 - Blow the dust off and bring it up to date ...... WA2INM 7 VHF with RDR - Navy surplus conversion. Covers 220 MHz band rather well ...... W2VCG, W2TAM 8 Six Meter Coaxial Antenna - Not for DX'ing, but it is simple, inexpensive and omnidirectional ...... W6KVO 12 The UNI - Code practice oscillator ....

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73 Magazine (October 1962)

Description: 73 Magazine October 1962 (#25) VHF'ing with the Standard Coil Tuner - The cheapest really hot VHF converter yet published ...... W4WKM 6 50 Watts on 50 MHz in 50 Seconds - Starting with the Heath DX-20 ...... K9STH 10 20 Meter SSB Exciter - Completely transistorized to boot ...... W5FRC 12 Four Layer Semi-conductors - Self completing automatic bug and other adventures of these new gadgets ...... K8AOE 16 Improved Base Clipper - Eliminates all signals below ...

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73 Magazine (November 1962)

Description: 73 Magazine November 1962 (#26) Solid State 1296 MHz Converter - Transistors on 1296? Good grief, what next? Sensitive too! ...... W3HIX 6 Deluxe Your Transceiver - The Lafayette HE-35A, for example. S-meter, spotting switch, etc ...... K6UGT 10 Junction Cheks - Quick way of making sure the junctions are still good onyour transistors ...... K2OPI 16 The Continental Six - Six meters SSB with this low-cost high performance transmitting converter ...... W1PYM ...

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73 Magazine (December 1962)

Description: 73 Magazine December 1962 (#27) Two Meter VFO - Very stable and uses one tube. Dandy bandspread ...... W6TKA 6 Modifying the Sixer - For a 50% power increase ...... K4ZQQ 9 Modifying the HE-45 - Improving the modulation & power output meter for this nice rig ...... WA2INM 10 The Irving Hiverter 50 - Six meter SSB converter tested at HQ by W1MEL. Works ...... Staff 12 Alternators - With mobile SSB coming at us in a rush we will be needing these ...... K8ERV ...

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73 Magazine (January 1963)

Description: 73 Magazine January 1963 (#28) Nu 1-1/4 Meter Converter - Three 6CW4 nuvistors in a sensitive 220 MHz converter ...... WA2INM 6 RF Controlled Break-In - Automatic send-receive controlled by the key ...... W8MQW 8 NTSC Signal for Ham TV - Ham-TV'ers will want to read this one ...... K2HQY 10 73 Tests the WRL Tech-ceiver - Works fine. Six meter transceiver ...... Staff 18 Linear Amplifier - 3-1000Z kilowatt ...... W6JAT 20 73 Reviews the PMR-8 - Fine little m...

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73 Magazine (February 1963)

Description: 73 Magazine February 1963 (#29) 6M SSB - Pros, cons, and the gear to do it with ...... W2NSD 10 432 MHz Gallon - Legal now ...... K2TKN 14 Mountain Topping for Blood - An old pro doesn't answer ones ...... K1CLL 20 Simplified 8JK Beams - The twin-three really puts out a signal. Really ...... W6WAW 24 Double Sideband - DSB has some decided advantages, you might as well read this and face it ...... W3PHL 28 Crystal Oscillator - How to get the stability requir...

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73 Magazine (April 1963)

Description: 73 Magazine April 1963 (#31) Adjustable Regulated Power Supply - Playing around with transistors? Then have: one of these ...... W1ISI 8 Diode Noise Generator - Simple test instrument to tune up converters, receivers and stuff ...... Thomas 15 Selected Circuits - Polar relay test set great for the RTTY group ...... W4WKM 18 Decibles - What they are, how to use 'em, complete with a monograph ...... K1MRK 21 Vector VFO - Simple, stable oscillator for 80 meter...

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73 Magazine (May 1963)

Description: 73 Magazine May 1963 (#32) Six Meter Transceiver - Cute little five transistor hand-held unit. Parts kit available ...... K3NHI 8 6DJ8/ECC88 Converter - Six meters down to 14 MHz using really hot front-end tube ...... WA2HVK 11 Simple T-R Switch - For the CW man who wants full break-in without TVI ...... W4MLE 12 All-Band Linear Kilowatt - Using the new Amperex 8179 you've been reading-about ...... W2LPC 16 Reducing Receiver Noise - Read this one, it is rea...

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73 Magazine (June 1963)

Description: 73 Magazine June 1963 (#33) Instant 220 - The AN/DMQ-2 is a snap to put on 220 ...... W2TQS 8 More Selectivity for the RT-91/ARC-2 - Great transceiver, covers 40-80 ...... W6BJI 11 PE-97A? What's That? - 12V in, 250V @ 100 mA out. Just right for Two'er, etc ...... W4DWU 14 Bandspreading the BC-348 - Curing one of the few drawbacks of this great surplus receiver ......W5EUL 18 Lazy Man's Coil Evaluator - Nice little piece of test gear you'll want to build. ...

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73 Magazine (July 1963)

Description: 73 Magazine July 1963 (#34) Sizzling Six - Super sensitive six meter converter. Kit available ...... W9DUT 8 Chemical City TU - One of the best RTTY converters to come along so far ...... K8IQJ 14 Low-Ebb in the Sunspot Cycle - "Humph, that's science fiction" said Tom astoundingly ...... K2TKN 17 Two-Banding the Swan One Bander - Cinch ...... W8DZH 18 Six Meter Transmitter - 2E26 output. Kit available on terrific tuning-indicator ...... K6GKU 22 Two Meter...

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73 Magazine (August 1963)

Description: 73 Magazine August 1963 (#35) Dry Cell Rigs - QRP mountaintop special for six meters ...... K1CLL 8 Diode Noise Generator - 73 kit. Zener diode voltage regulated job ...... K9ONT 15 Video Modulation - For the ham-TV contingent ...... W8VCO 16 Magic T-R - Best Tee-R yet for VHF with no loss of sensitivity ...... K5JKX 20 Saturn 6 - Soup up your halo with this tuning method ...... K5LPE 22 Utopia Break-In - Hear through your own sending and keep track of the ...

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73 Magazine (September 1963)

Description: 73 Magazine September 1963 (#36) Cast Iron Balun - Using ferrite core inductors. 73 parts kit available ...... W4WKM 8 CW Noise Limiter - Or have you noticed that your noise limiter turns off on CW? ...... W6SFM 10 Errorless RTTY Converter - Well, almost errorless ...... K5JKX 12 Bourbon S-Meter - As contrasted with the more popular Scotch S-Meters. Parts kit on this ...... W6TKA 18 Cartoon - Har de har ...... Rodgers 20 Towers - Compendium ...... K1APA 22 ...

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73 Magazine (October 1963)

Description: 73 Magazine October 1963 (#37) Do-it-Yourself WBFM Transceiver ...... K5JKX 8 Why Johnny Ham Can't Hear - (with apologies to Rudolph Flesch) ...... W6VAT 12 Why Fight Ohm's Law? ...... K5HPT 16 Tri-Element Remotely Tuned Yagi ...... WB2CQM 22 Rules of Thumb - Or How to Get in the Ballpark and Stay ...... W5IUR 28 Combination Antenna Coupler ...... W3WPV 30 The Minute Motor ...... W3WPV 36 Filament Transformer Conversion ...... W5VOH 40 144 MHz Nuvistor Conv...

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73 Magazine (November 1963)

Description: 73 Magazine November 1963 (#38) Another Approach to TVI - Harmonic Reduction ...... K5JKX 8 432 MHz Converter - Using the Navy surplus CFN-46ADT ...... W5AJG 16 The Perfect Match ...... VE3DGV 24 SWR/PWR Meters ...... W2KPE 28 All-Band Conical Antenna ...... W5VOH 32 Tool and Workshop Section ...... W2RWJ 40 AC Adaptor ...... W5KKB 42 Come-a-Longs ...... K4FQU 44 Of RTTY - And the TUZ terminal unit ...... W3TUZ 48 73 Tests the Hallicrafters SK-140K ...... W...

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73 Magazine (December 1963)

Description: 73 Magazine December 1963 (#39) Some Guys Make It - And then there's us ...... K2ORS 6 QRP Kilowatt ...... WA4DQS 8 50 MHz DSB - A novel approach ...... Unknown 16 Six Meter Transceiver ...... WA2INM 11 VHF Contest Special - A dissertation on the use of the Corner Reflector on 144 MHz ...... K9SGZ 20 The VR Tube ...... Lyman 24 432 MHz Exciter - From the ARC-27 RF Subassembly ...... W5AJG 32 Cartoon ...... W5IMJ 38 Sideband Linears ...... Staff 42 Barney an...

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73 Magazine (January 1964)

Description: 73 Magazine January 1964 (#40) Transistorized Receiver - High Quality ...... W3HKX 18 Receiver Deceiver ...... W2RWJ 30 Let's Keep it Simple ...... VE2AUB/W5 36 Going RITTY ...... W4RWM 39 Well Grounded ...... K4ZGM 42 The Beginning ...... W1KSZ 52 How Good is Your Receiver ...... WA4EPY 55 Effective Filtering - Or shut that thing off! ...... W2OZY 58 Two-Element Phased Array ...... W7RTP 60 Europe on $2000 a Day ...... W2NSD/1 64 Heath HW-22 - 40 meter SSB...

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73 Magazine (February 1964)

Description: 73 Magazine February 1964 (#41) Two Meter SSB Rig - employing novel features ......WA2IKL 6 Heath Warrior Tip ...... W2DOR 12 Simplified Receiver Design - become an instant expert ...... WA2INM 14 Making an AC Capacitor ...... K5JKX 23 Heat Dissipating Tube Shields ...... K2ENN 24 More on the Magic TR Switch ...... K5JKX 23 Miniture AM Tuner - transistorized broadcast tuner ...... K6AI 30 Loud Speakers and Enclosures - for phone ...... W1JKX 28 Transistor C...

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73 Magazine (March 1964)

Description: 73 Magazine March 1964 (#42) The Little Punch on VHF ...... K5JKX 6 Transistorized RTTY Converter ...... W1JJL 14 Modulation Measurement - the simple way ...... K5JKX 16 144 MHz Transistorized Converter - high performance ...... W3HIX 18 Biasing Tubes ...... W2BDG 20 Six Meter Transistor Receiver ...... W5JSN 22 Speech Compression for Mobile ...... W7SMC 28 Mobile Power Supply ...... K6BIJ 30 Neatness Does Count ...... WA2BWG 32 3/4 Meter TV ...... K2OPI 35...

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73 Magazine (April 1964)

Description: 73 Magazine April 1964 (#43) Los Angeles Six Meter Repeater ...... K6VWM 6 1296 MHz RF Pre-Amp ...... I1LOV 14 Our Man in Washington ...... W2DUD 18 Under the Noise ...... W2NSD/1 20 The Hallicrafter's SR-160 - a readers look ...... W8GTT 24 An Armstrong Sweeper ...... W2EMF 26 The Man-Key ..... WA60HD 28 IF Spotter ...... W5WGF 34 The Naughty Pi-Net - why is misbehaves ...... K5JKX 38 60 Watts on 75 ...... VE1IC 42 Pushbutton Control ...... K5JIC 48 Wavegu...

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