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73 Magazine


 
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73 Magazine (January 1966)

Description: 73 Magazine January 1966 (#64) The Space Monitor - Now, here's a real construction project ...... W9DUT, W9JFW 6 A Unijunction Keyer - Build a modern keyer for less than $20 ...... WA6TSA 12 Two-Element 20m Vertical Array - Get 3 dB gain and 15 dB front-to-back ratio ...... W6TKA 16 They Said It Couldn't Be Done - What? A female build a rig? ...... WA2YTK 18 Simplified RF Measurements - Measure impedance and power easily ...... WA6BSO 20 A Six Meter Peanut ...

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73 Magazine (February 1966)

Description: 73 Magazine February 1966 (#65) An 8163 Linear - An all-band 2 kW linear ...... W6OVW 6 And Then There's Phasing SSB - Discussion and a simple practical exciter ...... WA6KLL 10 Better Selectivity for Your Transceiver - CW selectivity makes CW operation easier ...... Roanhaus 16 A Crystal-Controlled Front-End - Stable high-frequency reception on your old receiver ...... W1QIM 20 The Key to Peaceful Coexistance - Between six meters and channel two ...... K6M...

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73 Magazine (March 1966)

Description: 73 Magazine March 1966 (#66) Circular Polarization - Use CP for moonbounce, trop, and OSCAR ...... K6MIO 6 Solid-Stale Sixty - A 60 watt regulated power supply for and with semiconductors ...... K3LCU 12 Crystal Oscillators - Tube, transistor and FET. his is a good one ...... W6GXN 14 Slaying the Monster - Or: Why fear TV? ...... W0EDO 18 Diary of a DXpedition: VP2VD - So you think it's just a matter of sitting by the pool and operating? ...... K4IIF 20 Unm...

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73 Magazine (April 1966)

Description: 73 Magazine April 1966 (#67) Barefoot and All That Jazz ...... W7IDF 6 A Simple Six and Two Amplifier ...... K1CLL 8 That Pretty Anodizing ...... W8BPY 12 The Bee Eliminator ...... W8VVD 14 The Six Meter Jewel ...... K3PXT 16 The Ascendency Curve Yagi ...... K6EDX 20 The Uhfit ...... WA1CCH 26 Six to Two Transmitting Mixer ...... K9EID 40 A Slotted Line for 1250 MHz ...... WA8CHD 42 A Short Look at Current Propagation ...... Nelson 46 Diddleboxes ...... W2D...

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73 Magazine (May 1966)

Description: 73 Magazine May 1966 (#68) New VHF Circuits for Transistors - 6 meter converter and filter from Frank Jones ...... W6AJF 6 RF Applications of N-Channel FETs - Very important article; a 73 scoop, of course ...... WA5KLY 12 Size is Impressive - A little humor to brighten the day ...... K3VMZ 14 FSK Principles - How to transmit RTTY on HF ...... W4EHU 16 VHF-UHF Panoramic Reception - Now you can watch that empty band ...... W5NPD 20 UHF Grid Dipper - Excellent...

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73 Magazine (June 1966)

Description: 73 Magazine June 1966 (#69) The Micro-Ultimatic - 73 scoop: integrated circuits in a high-performance keyer ...... W1CFW 6 A Transistorized Scope - Another ham scoop: use transistors for deflection amplifiers ...... K8ERV 14 50 Watts on 50 MHz for $50 - This project should prove popular ...... K1CLL 18 Two Meter Transistor Converter - Cheap, simple and works well ...... W6AJF 24 220 MHz Transistor Converter - Grounded emitter or grounded base, too ...... W6...

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73 Magazine (July 1966)

Description: 73 Magazine July 1966 (#70) MARS HF Mixer and Amplifiers - Also good for putting your tri-band rig on 15 or 10 ...... WA4KIH 6 Two-Element Weeping Willow for 15 - Perfect for novice DX'ers ...... WA8MVR 12 Frequency Measurements for Hams - Receives VLF, too ...... W6BLZ 14 VHF Parametric Transistor Multiplier - Experimenters must read this one. A scoop, of course ...... W6GXN 20 How to Get Your Extra Class License - Here's the easiest way to do it ...... W5...

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73 Magazine (August 1966)

Description: 73 Magazine August 1966 (#71) More Power on Six - Drive this linear with your AM or SSB exciter ...... WA9JGU 6 James Dandy Mixer - A very simple, yet useful, test instrument ...... W2DXH 12 A Poor Man's 220 Transmitter - It puts out half a watt; good for local work ...... WB2EGZ 14 Another Solid-State 2m Transmitter - With very inexpensive transistors ...... VE2DG 20 The Mini Monitor- Every ham should have one ...... W3UZN 22 Audio Test Amplifier - This is...

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73 Magazine (September 1966)

Description: 73 Magazine September 1966 (#72) Compact Six and Two Transmitter - Here's a very clever 60 watt rig; easy to build, too ...... K6RIL 6 Poorboy Mark II Quad - A simple, light, three-band quad ...... K4USK 14 5 dB Gain on 75m Mobile - Increase your mobile signal at low cost ...... W3BTQ 20 Accurate VHF Frequency Measurements - Use your BC-221 for high accuracy on two meters ...... W5WGF 22 Add SSB AGC to Your Receiver - It's not hard or expensive ...... W1OOP...

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73 Magazine (October 1966)

Description: 73 Magazine October 1966 (#73) Integrated Circuits - How will they affect you? ...... WA1CCH 4 EI Marrinero - An inexpensive eighty meter SSB transceiver ...... W6BlZ 6 Two Tubes for Two - SSB on two with two tubes and a twenty meter transceiver ...... K9EID 16 432 MHz Transmitting Converter - Not too expensive or hard to build ...... K6RIL 18 A Two Meter FET Converter - Low-noise, low-cost and low cross-modulation ...... K6HMO 22 Electronic Thermometer - M...

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73 Magazine (November 1966)

Description: 73 Magazine November 1966 (#74) 80 Watts on Two Meters - A worthy successor to Bill's 50 watts for 50 meters ...... K1CLL 6 The Novice Class - Then and Now - How it's changed over the years ...... W7OE 12 Tuning the RTTY Signal - You can't receive teletype if you can't tune it ...... W4EHU 16 A WWV Receiver for $5 - Convert a simple transistor set to receive 2.5 MHz ...... W2DXH 20 Streamlined Transistor Modulators - You can fully modulate without a transfo...

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73 Magazine (December 1966)

Description: 73 Magazine December 1966 (#75) Transistor Power Supplies - Useful information on low-voltage DC supplies ...... W6GXN 10 The Sideband Escalator - Have you tried SSB speech clipping? ...... W6TAQ 16 A Ham Electronic Counter - Determine your frequency the modern way ...... K7UDL 20 The Novice Pair - Build a practical, modern novice station ...... W1JJL 28 A Lab-Type Power Supply - Regulated low-voltage output; PC construction ...... W6GXN 38 QRZed the YL - T...

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73 Magazine (January 1967)

Description: 73 Magazine January 1967 (#76) An IC Crystal Calibrator - 10 and 100 kHz markers output; costs $13 ...... KlDCK 6 Transistor Converter Notes - Some new developments in Frank's popular VHF converters ...... W6AJF 10 A kW with the Amperex 6KG6 - A very straight forward SSB grounded-grid linear ...... W7CSD 14 FET Transconductance Tester - A simple, yet effective checker; a scoop ...... W1DTY 16 Climbing the Novice Laddar: Part 2 - Joe starts a homebrew projec...

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73 Magazine (February 1967)

Description: 73 Magazine February 1967 (#77) Getting Acquainted With Integrated Circuits - Here's practical information on using inexpensive ICs ...... Thorp 6 Using Low-Cost FET's on Six - Two $1 FETs and a cheap PNP give 2 dB NF and high overload resistance ...... W6AJF 11 Low Cross-Modulation on Two - A $ 1 FET makes an excellent mixer on two ...... W6AJF 14 The 30P1 Linear Amplifier - A peasant's 30L1: Four 811As ...... W1DBN 18 An Improved Multiplier for UHF - Get ...

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73 Magazine (March 1967)

Description: 73 Magazine March 1967 (#78) A Digital Identification Generator - Send your call automatically with no moving parts ...... K6ZCE 6 SSB Proof-of-Performance - How does your station perform? ...... K6YKH 14 A Non-Tiring CW Monitor - Pure single sine waves are monotonous. Try this instead ......W1DCG 18 Seven Elements on Twenty - On a 60' boom ...... WA4WWM 20 Climbing the Novice Ladder - Part 4: The code is almost conquered ...... W7OE 24 Going RTTY: Part 4 -...

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73 Magazine (April 1967)

Description: 73 Magazine April 1967 (#79) The Super Duper Super - It may not be a super, but it's sure super duper ...... WN1ECCH 6 A Toroidal VFO - An excellent VFO with many interesting mechanical features ...... W4BRS 10 Transceiver CW Filter and Monitor - Improve your transceiver's CW capability ...... WlDCG 14 Dreadful Ham Cliches - Special for April ...... K3SUK 16 The Converter Converter - Stick it between your UHF converter and your low-frequency receiver .........

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73 Magazine (May 1967)

Description: 73 Magazine May 1967 (#80) The Quad-Quad-Quad - Sixteen quads on a single mast for 144 and 432 ...... VE3DNR 6 The Expanded Quad - More gain and directivity on 10, 15 and 20 ...... WA5KXY 16 An Inexpensive DX Antenna - A low-cost, two-element quad for DXer's ......WA6WUI 20 The Miniquad - A practical small size quad for twenty meters ...... WA2APT 23 A Full-Size 7 MHz Rotary Cubical Quad - For hams with big backyards ...... K6DDO 26 Experiments with Quad An...

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73 Magazine (June 1967)

Description: 73 Magazine June 1967 (#81) The Whole of the Doughnut - Toroidal coils for kilowatt amplifiers ...... W4BRS 6 A 1296 Grid Dipper - 1050 to 1320 MHz with a converted APX-6 ...... W1DTY 16 Using FETs in the Command Set Transmitter - Results in a very stable VFO ...... K3LCU 23 The Dichotomy of a Tube Man - Putting on FET in the BC-906 frequency meter ...... W5SOT 26 Converting the Swan 120 to 6 Meters - Be prepared far the six meter openings this fall ...... ...

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73 Magazine (July 1967)

Description: 73 Magazine July 1967 (#82) North of the Border - Amateur radio in Canada ...... VE1TG 6 Suppressed Carrier Amplitude Modulator - Double-sideband adapter for AM rigs ...... VE7PQ 10 A Homebrew 50-Foot Tower - Low-cost, self-supporting, tilt-over construction ...... VE6KS 12 Simplified Transistor Design for the Ham - It's easy when you know Ohm's law ...... VE1ADH 14 VE0 Ahoy - Canadian maritime-mobile stations ...... VE1TG 22 World's Fair - 1939 - And the W...

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73 Magazine (August 1967)

Description: 73 Magazine August 1967 (#83) Push-Pull Class-B Grounded-Grid Linear - An unusual, if not new, approach to high power ...... VE3AAZ 6 A Frequency Calibrator for the VHF Man - Finding yourself on 144 and 432 MHz ...... W6GXN 12 The Semi-RTTY System - Solid-state AFSK oscillator and terminal unit ...... K0JXO 20 Mobile Power - The Alternator - Their use and abuse ...... W9NLT 24 Visual Monitoring of Remote Carriers - What does your CW signal look like? .........

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