73 Amateur Radio Today – December 1977 Issue
Issue Contents:
Inside Ten-tec
– QRP innovators …… K4MDK 34
The History of Ham Radio
– part V …… W9CI 38
Try BCB DX!
– when you’re tired of twenty …… WB2BJH 42
Build An Engine Analyzer
– use your scope! …… WA6THG/kH6 46
More Repeater Control Devices
– control unit/audio interface …… W7JSW 50
How Do You Use ICs?
– part VIII …… WA2SUT/nNN0ZVB 56
Finally! A Practical Discriminator!
– metering system that is …… K4GOK 62
A Kilowatt Alternative
– try a gain antenna …… WB0KTH/4 66
All About Transceivers
– Novices take note! …… WB5ASA 68
German Amateur Procedures
– and repeater information …… W8CM/5 72
The DA4FB Story
– American repeater in Germany …… WB4EWX/dA1KD 78
Decode Morse
– with an 8080 …… WB9KPT 92
Futureshot
– Just around the corner …… K9KIC 98
Try A Micro Contest Logger
– the 6800 does it all …… KH6GMP 102
Computerized Global Calculations
– finding the best way to Pago Pago …… VE3EKR 106
Micro Meets JANET
– meteor scatter anyone? …… W5HK/9 WB9WXM 108
Run Sheila Run!
– real-life radio control …… WB0IFF 114
CB to 10
– part VI: antenna suggestions …… K5UKH 120
CB to 10
– part VII: convert a TRC-11 …… WB8CLF 122
Battery Backup for Digital Clocks
– don’t miss a second …… WA2EJT 123
Roll Your Own QSL Cards
– originality for rare ones! …… G3WDI 130
Glide On Six
– radio control primer …… WB3BQQ 134
More IC-22S
– add a programming switch …… K0HPF 138
Amplitude vs. Frequency
– poor man’s spectrum analyzer …… Staff 140
How About An Auto CQ?
– generate some 10m activity! …… K4TSY 142
SSB For the “Frog”
– tame the croak …… W5JJ 144
Beat the Books
– study hall special …… WB9YKR 145
Clocking Those Clock Kits
– check out the MK-03! …… W6SWZ 148
Digital Signal Source
– TTL signals for counters micros …… K7HKL 150
Regenerated CW
– CW: as you like it …… Staff 152
High-band Your KDK
– monitor the other half! …… W2PMX 177
The Rescue
– rest-life drama …… WA6LJL 178
Welding Rod Special Antenna
– for seamless contacts …… WA5TSJ 179
Tanks A Lot!
– inductor calculation program …… WA9GUK 182
Build the EI Sapo Tester
– for hams with spare time …… Staff 184
Finally! A Simple PROM Burner!
– for the 8223 and 82S23 …… W7JSW 186
Try A Topical CQ
– for special interest groups …… K4GRT 188
Call Letter Gouger
– adds class to any shack …… WB6JYK 189
Adjustable Bench Supply
– would you believe 1.2-37 volts? …… Staff 192
Test Instrument Saver
– an old phone is required …… Miller 193
Photoelectric Bench Accessory
– when you need an extra “eye” …… W3KBM 196
Inside the SR-52
– calculator doubles as micro …… WA6THG 198
Boost Your TR22!
– with a mini rock crusher …… WA2INM 200
QRM on the Moon?
– yep on all bands …… W4NVK 204
Filcher Foiler Car Alarm
– car door operated …… WB6THJ 206
Quick Deviation Meter
– for the IC-22A …… WA1UUK 207
Build a Noise-free Power Supply
– avoid spikes with sine waves …… K4DHC 208
Surplus Goodies
– are they really for you? …… Villastrigo 210
Try A New Mode!
– don’t let boredom strike …… N4KC 214
Build A Useful HF Receiver
– Novice special …… Staff 216
Wake Up A Dead Repeater!
– with these new Q signals …… K9AZG 218
73 Amateur Radio Today – December 1977
