73 Amateur Radio Today – December 1964

73 Amateur Radio Today – December 1964

Issue Contents:

SSB Mobile Receiver

– Lots of nice ideas in this one …… W3ZFJ 6

Cheap Pair of Socks

– Simple linear using inexpensive new tube …… W6NKZ 10

28 Volt Supply

– 10 amps at 28 volts for $10 …… K6VNT 12

Weather Detector

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

14 Elements on 432

– Simple yagi for 70 cm …… K1CLL 16

Miniature Multiband Tuner

– Very clever and useful …… W6SFM 18

Bamboo Birdcage

– Thanks to G4ZU and the boomless Quad ……W6WAW 22

Going RTTY – Part 2

– Part 1 was in January …… W4RWM 24

Sixer to the N’th

– Some small changes for operating convenience …… K1GHO 26

Two’er Talk

– These simple changes improve performance significantly …… W8HHS 28

High-level Modulation for Ham TV

– Series modulator for improved results ……W7CSD 30

That Elusive SWR

– Why throw away those watts? By our Paramp author…… WA6BSO 32

Short Folded Dipoles

– How about a 33 foot antenna for 80 meters? …… W6WAW 34

VFO Construction Techniques

– Solid for stability. Like the U.S.S. Missouri …… W4WKM 36

Two Meter Double Sideband

– The Phantom rises again …… W6TKA 40

When Good Losers Get Together

– Non-technical. In fact funny …… WA5EFL 46

Evaluating Receivers

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

RK 715B on 6 Meters

– Old 5D21’s never die; they just turn into quarts of RF …… K2ZEL 58

Testing the Clegg Venus

– In case you wondered: it’s tremendous …… 64

SSB With the 6N2

– Curious huh? …… K5SGP 68

Unit Power Oscillators

– More useful UHF test gear in Bill’s inimitable style …… KlCLL 78

Repair That Mike

– Fix up that old mike with an inexpensive new cartridge …… W4WKM 82

Heath Tunnel Dipper

– A very useful piece of gear …… W3UZN 84

The Autotransformer

– For maximum power supply versatility ……W1ISI 96

Bandpass Coupler Design

– Or maybe you like to twiddle knobs …… K5JKX 102

73 Amateur Radio Today – December 1964

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