73 Amateur Radio Today – September 1976
Issue Contents:
Balloon to Balloon!
– another 73 first …… W2NSD/1 20
The Surprising DORA Low Noise Antenna
– part II …… Boyer 34
Ultrasimple Regulation with New IC
– power supply design greatly simplified …… WB0JLS 48
Can An Indoor Antenna Work?
– making the best of a bad bargain …… Staff 56
12 Inexpensive Volts for Your Base Station
– parts right out of your local Radio Shack …… WA8WVF 60
A Test Lab Bonanza
– using a transistor radio …… WA7SCB 64
Protect Your VHF Converter
– with a novel antenna relay …… WB2NTP 68
Ridiculously Simple RTTY System
– get on the air in one day …… W3KBM 70
How to Catch a CBer
– practical hints …… Fields 74
A 450 MHz Transceiver for Under $130
– bringing 450 within everyone’s reach …… W1HCI K1ELT 80
Space Age Junque II
– updating the 348 by 30 years …… W9CGI 84
PROM Memory Revisited
– getting back to May’s CW blockbuster …… WA6VVL 92
What’s When
– timing diagrams …… Craig 104
Eight Trace Scope Adapter
– test accessory for digital timing …… Johnson 108
The PROM Zapper
– build this simple PROM programmer …… WA1UFE 112
Sneaky Baudot
– with an ASCII keyboard! …… W3KBM 115
Simple Graphics Terminal
– using inexpensive surplus equipment …… K1MRK Ciarcia 116
Counters Are Not Magic
– They’re Simple – getting right down to basics …… WB2NEL 126
73 Amateur Radio Today – September 1976
