73 Magazine November 1984 (#290)
Color Computer SSTV: Part I - Turn your CoCo into a complete SSTV terminal How? First, build this high resolution display system ...... K6AEP, WB8DQT 10
Wrap Up TVI! - Can you endure another evening without transmitting? Use this simple cure to choke out television interference forever ...... KR7L 26
But I Know How To Solder! - Anyone can dribble hot metal over a joint, bit it takes an artist to really solder. Are you a Picasso or a pig? ...... WD4S 28
Free-Form Filter Design - Build the ultimate audio filter: high-pass, low-pass, bandpass, notch, variable Q and cutoff frequency, all in a single circuit. Circuit? Sorry, that's a single chip! ...... KA4QVK 34
Your Own Optoelectronic Anemometer - Light contral and car-top calibration make this project cheap to build, easy to align, and extraordinarily accurate ...... K3VDB 42
Rampant RTTY - Create the ultimate mallbox! K0WVN describes a system that operates from 45 to 1200 baud with dual shifts-automatically ...... K0WVN 50
Decode Soviet Space Messages - As you read this, mysterious signals are being beamed into your shack. What do they mean? Where are they coming from? Use WD0BCI's satellite-telemetry reading program to uncover facts ...... WD0BCI 53
The End of the Line - What's the point of sending power up the coax if it never reaches the antenna? These tips on connector installation and care will help maximize your station's signal ...... WB5LBI 56
A Useful Present You Can Build - How about a high-tech holiday gift? ...... WB4YOD/PW8ZAF 58
Ham Over Fist - Here's a VIC-20 CW program with a twist: Its real-time display lets you watch your dits and 'dahs dance across the screen. But be forewarned-you may not like what you see! ...... WD8BHH 64
Homemade Defroster Shutoff - This simple gadget has nothing to do with amateur radio, but its a neat little project anyway ...... KB2WM 68
Index courtesy of
http://www.qsl.net/kb9mwr/files/ham/73.html.