73 Amateur Radio Today – July 1974

73 Amateur Radio Today – August 1974

Issue Contents:

Modern 4-1000A Linear

– At last -a use for that 4-1000A lying around in your junkbox …… K8UIR 17

“Free” Batteries for TT Pad Power

– 73 lands another great article …… W3WTO

The Scotch Transistor

– Hoot Man you don’t have to throw it away after all …… WA9UFG 31

Poor Man’s Universal Frequence Generator

– Only after you build it …… W2EEY 33

Universal AFSK Generator

– An article of cosmic importance …… K6IQL/n0ZIP 37

Cheap 10-mmute Timer for the Shack

– Price does not necessarily indicate shoddiness …… WB2VRW 47

Low Frequency Phased Array

– Here’s one to satisfy all you 80m buffs …… W2OZH 49

DC Isolation of RF Amplifiers and Modulators

– Another great one from Bill …… K1CLL 55

Little Bill

– A neat little transmitter …… W9WBH 63

3000V DC Supply

– Here’s something to do after you finish your 4-1000A …… K8VIR

Diagrams

– At long last an easy way to tell the difference between a resistor and a tube …… WB2PAP 73

73 Amateur Radio Today – August 1974

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