73 Magazine December 1977 (#207) 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 Index courtesy of http://www.qsl.net/kb9mwr/files/ham/73.html.