73 Amateur Radio Today – October 1980
Issue Contents:
Escape from Mt. St. Helens!
…… W7WFO 34
Sheila Ran!
– a sightless sprinter’s triumph is one of ham radio’s finest hours …… WB41IFF 38
The First Man in Space Was a Ham
– UA1LO remembered …… W1QMS 42
NASA Satellites You Can Use
– with permission of course …… K40VK 50
Undertones
– a fractional frequency oscillator …… W4FEC 56
The Arcane Art of ATV
– the transverter approach to fast-scan television …… WB8DQT 60
How to Make a Good Scanner Better
– a bevy of useful mods …… WA4PYQ 68
Win Friends for Your Club
– PR is the name of the game …… WA5TUM 76
Field Strength for Free
– a home-brew conversion …… Staff 82
The QRM Killer
– antenna alternative for 40 …… W9HBF 88
PC Boards- A Photographic Method
– it’s easy when you take it step by step …… WB5HGR 104
Free CMOS Timers
– build one-shots from spare inverters …… WD5DDR 113
Late Check-ins Come Now
– zero-beat on this computerized NCS system …… N8AD 120
A Computer-controlled Talking Repeater
– Part I: Introduction …… WA6AXX 124
Murphy’s Own OSCAR Tracker
– simple pointer for satellite antennas …… K8BG 132
Counting with Class
– build this SOD-mHz LSI frequency counter …… WB4EKB 134
A Transistor for True Believers
– tubes forever? Not with FETs! …… WB7CMZ 142
Stay Cool with TM
– use thermostat modulation to lower your heating costs …… WB2EQG 144
One Man’s Magazine: Twenty Years of 73
…… N1AUI 146
How To Be An Amateur
…… W2ZGU 156
Some Guys Make It
– and then there’s us …… K2ORS 168
The 40-meter Band Blaster
– this antenna works but why? …… W9HBF 179
Gilding the Lily
– FT-101 mod for the crazy purists …… WB4HLZ 188
Mike Mods for the KDK-2016A
– improved scanning …… WB9WNU 190
Clock Blocks
– a compendium of TTL and CMOS oscillators …… K4IPV 192
Build a Better Battery Tester
– test ’em under load …… Staff 196
Getting the SB-220 to Idle
– a final-saving mod for Heath’s popular linear …… W9RY 197
Egad! An Easy-to-build Synthesizer!
…… N4CEY 210
73 Amateur Radio Today – October 1980
