73 Amateur Radio Today – November 1982
Issue Contents:
A Perfect “10”
– Timer counter logic probe – 10 functions in all. That’s the Multi-board One and you can build it …… WA2BHB 10
Remote Control Your IC-701
– Simpler than commercial controllers this home-brew circuit nevertheless features push-button band changing and frequency selection scanning and expanded coverage …… N2GW 14
Automatic Beam Aimer
– Here is the scoop on adding set-and-forget convenience to your rotator control. Works with most common control boxes …… K9AZG 22
Life Support System For HTs
– At home or in the car this do-it-yourself charger and accessory box could be the best friend your handie-talkie ever had …… WB6BHI 26
What? Another Audio Filter Project?
– Yep. And even the most modern receivers benefit from this QRM-crusher …… W4MLE 32
A Tuner For Antenna Fanatics
– Anyone experimenting with antennas needs a darn good tuner. Construct this one and save your finals …… Staff 42
Digital Basics
– This is no time to be a digital illiterate. Part III reveals the secrets of multivlbrators shift registers and other notorious devices …… K4IPV 46
The Money-maker Power Supply
– Need 12 volts for your transceiver? Save half the cost of a commercial unit by assembling this 25-amp monster …… WA6TTY 56
TVRO Q & A: Part III
– LNAs are expensive but rolling your own is a losing proposition …… WB0POP 64
The Sound of Silence
– Beep!! Your TS-180 is off the air Charlie …… HB9BLU 70
Build the Re-fuser
– It’s a self-replacing fuse. Why blow one when you can blow two? …… K5CN 72
No Smoking in the Ham Shack
– Overvoltage kills solld-state finals Protect yours for $1.00 …… N7JJ 74
Tempo MARSer
– Get the S-1 off those crowded ham channels. Expand your coverage above and below the amateur band …… WB6IQN 76
CW and the Apple II
– The simpllcity of BASIC plus the speed of machine language equals a near-perfect Morse keyboard …… N5MR 84
Everyman’s Audio Amplifier
– Make this one chip amp a permanent part of your test bench. It’s an easy project for beginning experimenters …… W3KBM 90
Award-winning Program
– Certificate hunters cut your paperwork down to size. Let your Pet track your quest for excellence …… WB2GFE 94
Speed Demon
– How fast was that? Find out with this wpm display for Heath’s 1410 keyer …… K4ZHM 102
Keyer on a Shoestring
– Hams are cheap and so is this keyer. Big spenders will build the deluxe two-chip version …… WB5PPV 104
I Got My Ticket! Now What?
– A look at what Elmer forgot to tell you …… N1II 106
73 Amateur Radio Today – November 1982
