73 Amateur Radio Today – February 1961
Issue Contents:
Rolling Your Own
– We’re determined that you’re going to build something …… K5JKX/6 11
Amplifier for Varicap Modulator
– More for gain for the modulator in our October issue …… W7CSD 16
World’s Simplest Phone Patch
– Average construction time: five minutes …… K5JKX/6 17
Two Meter Pip-squeak
– Complete phone rig using only three 6CX8’s …… K6BP 18
Squawk
– Guaranteed Houser. We should needle Ken into writing more like this …… W7IDF 20
Six Meter Converter
– For the car… Operates with only 12 volts on the plates …… K5JKX/6 22
Heath Phone Patch
– Heath does it again. Works fine for SSB also. Hey Heath where’s the ads? …… K2DHA 24
Life Insurance for Transistors
– These little rascals are delicate so watch your step …… K6EAW 26
Beat Generation
– Big technical article on SSB and CW detectors …… Staff 28
Updating the Absorption Wavemeter
– Real handy piece of test gear and easy to knock together …… W3FQJ 34
Interference Chaser
– Easy way of getting audio break-thru out of TV sets and things …… K5JKX/6 35
Getting the Most Out of Your Mobile Whip
– How to make the best of a miserable situation: a short vertical antenna …… W4API 36
How Modern is the VFO?
– Not very …… W7OE 38
EICO Grid Dip Oscillator
– Our Associate Editor is still building up kits and liking ’em …… W3UZN 42
Power for the Pro
– Super-pro owners take note …… K5JKX/6 44
Differential Switching
– Using polar relays for sensitive switching- at different current levels …… Pafenberg 46
Propagation Charts
– What time to where on what bands… Probably …… K2IGY 56
73 Amateur Radio Today – February 1961
