73 Amateur Radio Today – May 1970
Issue Contents:
73 Comments on FCC’s Proposed Repeater Rules
– Passage as proposed could be catastrophic …… Staff 20
What Will Become of CW?
– What became of the passenger pigeon? …… W5TOM 30
FM-aM Transmitter-receiver Aligner
– Two transistors any band HF or VHF simple useful …… W3JKL 34
5/8 Wavelength Verticals
– Twice as good as a Quarter-wave …… WA0NGV 36
The Intelligent Use of Two Meters FM
– It is possible ……K1ZJH 40
Plus 10 dB
– The October ’68 article was better illustrated …… W2OLU 46
A Ham-style Burglar Alarm for the Car
– First take two sticks of dynamite then …… K2JLD 48
Power Supplies From Surplus Components
– Cheapskates’ power supply manual …… WB6BIH 50
RF Riviera Style
– Quieting Buick’s super noise generator …… K9BDJ 58
Keep ’em Cool In KPO Cans
– Cheaper than blowing your cool …… G3KPO 60
Towards The Ideal Solid-state I-f Part II – Filter Converter AVC
– State-of-the-art for VHF …… K1CLL 62
Epoxies for Electronics
– Cold solder joints become respectable at last …… W9KXJ 73
FET Pre-amplifiers For VHF Operation
– 20 dB gain = 100 times the power! ……WA4WDK 74
Educated Idiot Lights
– Like the oil light indicating your engine just burned out …… Holford 78
Postage Stamp Transmitter for Six
– Shades of Dick Tracy …… K1CLL 80
Getting Your Extra Class License Part XVI
– RF power amplifiers …… Staff 88
The 27-minute Mobile Noise Limiter
– If you build it right it may last even longer …… W7SOH 102
A Low -band Police Monitor
– For emergency CD or SDS use …… W6JTT 106
A Mobile CW Transmitter
– Gives a driver something to do with his two free hands …… W6BLZ 108
An FM “Best Buy”
– You have an FM ed itor and you have FM articles …… WA7EMM 112
Science Fairs: Science Education
– By the Science Editor of Radio Today …… Staff 116
The Wichita Autopatch
– Telephone through a 2m FM repeater (while you still can) …… W0DKU 118
London’s Science Museum Demonstration Station
– GB2SM …… Ellison 125
Try Bigger Knobs For Better Operating Performance
– Tiny knobs cramp your style…and fingers …… WB2ICV 129
73 Amateur Radio Today – May 1970
