73 Magazine December 1979 (#231) New Product: Swan's Astro 150 SSB Transceiver ...... WB8BTH 32 Low-Cost Receiver for Satellite TV - this modular design uses readily available technology ...... N6TX 38 A Simple 2m/10m Crossband Repeater System - work the world with an HT! ...... K9EID 44 Audio Booster for Mil-Surplus Receivers - a must for headphone haters ...... McClellan 50 Working with FETs - part II : experiments with gain and supply voltage ...... WA2SUT/NNN0ZVB 54 Build this $50 Mini-Counter - three-IC design goes to 135 MHz ...... McClellan 58 A Versatile, variable Active Filter - dc switching and 8-pole response make this one a winner on RTTY or CW ...... WA8HEB 66 Variable Tuning for WEFAX Receivers - why be rockbound? ...... N6TX 70 Ham Radio Marriage Manual - a YL and her understanding spouse ...... WB5YVE 76 The Space-Saving Square Vee Antenna - a directional radiator for cramped quarters ...... W7DJB/6 80 License Upgrading -A Plan of Attack - you need not fail! ...... WB2RVA 84 Muffin Fan Mania! - a compendium of knowledge about electromechanical air movers ...... WA6NCX/1 88 Are Repeaters Ripping Us Off? - some thoughts about open access to scarce frequencies ...... KB2JN 92 My TR5-80 Is Here... Now What? - first steps in programming your computer ...... W3KBM 96 Teaching Your Micro to Count - two methods for adding counter capability to your 6502 machine ...... K6EW 104 Operation Santa! - spread holiday cheer with this super club project ...... WD8LPN 118 Tools and Techniques for Wire-Wrapping - an excerpt from 73's new book ...... W6SWZ 126 Working with Transistors - useful knowledge begins where gobbledygook ends ...... WA2SUT/NNN0ZVB 132 A Digital Clock with Analog Readout - this is progress? ...... W9IEA 138 Turn Off Repeater Windbags - HT mod brings welcome relief ...... WD5HYQ 144 Build a $5 Coax Switch - why pay more? ...... W8HXR 146 Hamdom's Evangelical Crusade - born-again ops, arise! ...... WB8TCC 148 The Memorizer Flies Inverted - something Yaesu never told you ...... W1WUO 150 Double-Duty Decoder Project - listen to SCA and tune in RTTY ...... WA1UFE/5 152 Build a Simple HT Charger - doubles as a 12-V supply ...... W6SMJ 158 Do-it-Yourself Carrying Case for Wilson HTs - save $14.88 ...... K2GMZ 160 Come On In- The Viewing Is Fine - an update on trends and developments in SSTV ...... K4TWJ 168 Rack 'Em Up - glass jars and orange crates are "where it's at" for parts storage ...... VE2BVW 172 Gadzooks! A variable 0-260 V Ac Supply! - junk-box delight ...... WB8JCQ/LU1AKO 174 Scrounger's Special: Used Dental Tools - your DDS throwaways make dandy PCB drills ...... WA7OYX 176 First Look at Latest Radio Laws - the official work ...... KB5AO 188 The Induction Relay: Self-Powered Switching - this unusual actuator doesn't require a separate control voltage ...... K6DZY 192 The Further Adventures of Keycoder - simplified wiring for the toroidal cores ...... AD9K 196 All About Ground Rods - getting connected to Mother Earth ...... Staff 200 Index courtesy of http://www.qsl.net/kb9mwr/files/ham/73.html.