73 Magazine February 1979 (#221) Five-Chip Auto IDer - in case you forget ...... Bartholomew 28 The Vacationer - B&W's portable antenna ...... WA2ALT 29 Tone Decoder Improvements - another step toward perfection ...... WA1LMV 30 The All-Wrong Power Supply - works in spite of itself ...... WA3EEC 32 The Hardhearted Rf Detector -insensitive to harmonics ...... N4ES 33 Custom-Designed Power Supplies - try the 723 ...... K2GEJ 34 A Touch of Class - nifty $35 operating console ...... WA4CUD 39 How To Bury Coax - the garden cultivator technique ...... W4MEA 40 Mobile Antenna Ingenuity - cheap HF radiators ...... WA8ATE 42 Impedance and Other Ogres - another look at swr ...... Staff 46 The Active Filter Cookbook - review of Lancaster's treatise ...... VE2BVW 50 A Rock-Solid AFSK Oscillator - hooray for stability! ...... WB4MBL 52 Pulser Plus - a one-shot with more ...... VE2BVW 54 Oh, My Poor Quad! - measuring wind speed ...... K2CL 56 A Self-Contained, Fully-Automated, Transistorized Fuse Tester - amaze your friends ...... G3TAI 58 Don't Get Burgled! - build this simple alarm ...... Fletcher 60 Power x 2 - dual auto batteries ...... Miller 61 Experimenting with Tones - fun with functions ...... W2FPP 62 Synthesize Your Ash Tray - article for non-smokers ...... WB9VWM 64 Attention, Satellite Watchers! - a solid-state monitor for GOES ...... WB8DQT 66 Batteries Dead? - take preventative measures ...... Staff 78 How to Nab a Jammer - another use for 220 ...... WB0CMC 80 This Station Plays Beautiful CW - with a Morse keyboard ...... WB9WRE 84 The Cure for Migraines - a low-pass CW filter ...... Harper 92 An 8080 Repeater Control System - part I, an overview ...... N3IC 94 The Cosmac Connection: Part 2 - meeting Mr. Morse ...... VE3CWY 106 Learning the Code - a better way ...... Waldie 110 Books for Beginners - you have to start somewhere ...... WA7NEV 116 The 2 Meter ECM Caper - James Bond , move over! ...... W2JTP 118 "I Love My Ten-Tec!" - a look at the 540/544 ...... WA0JIH 120 A $5 Phone Patch - the darn thing really works ...... WA6RJK 122 The Filcher Foiler Revisited - vehicular protection ...... Davis 136 Build An Economy Zener Checker - versatile test rig ...... W4RBL 137 Alaskan Adventure - stalking the elusive KL7 ...... WB5WDG 140 The Last DXpedition - "QTH hr is Purgatory" ...... K3FDL 142 An Audio Morse Memory - got a tape recorder? ...... WB6WQN 144 The Amazing Active Attenuator - can you find a use for it? ...... VE2BVW 146 A Single IC Time Machine - amazing clock ...... K6SK 148 Car Battery Charger - junk box special ...... W1DWZ 156 Immortality for Vacuum Tubed - build a solid state tube saver ...... K5KXM 160 The Hot Mugger X1 - coffee drinkers, rejoice ...... WB9QZE 163 Build the Mini-Probe - its only logicical ...... Rister 164 Index courtesy of http://www.qsl.net/kb9mwr/files/ham/73.html.