73 Magazine December 1980 (#243)
Who Really Invented Radio? - the twisted tale of Nathan B. Stubblefield ...... WB2NEL 36
In Search of the Elusive SES - track solar activity with this simple VLF receiver ...... WA3UER 42
An Even Better IC Timer - better than what? ...... WA0PBQ 46
Direct Printing FAX - Part II: constructing the facsimile recorder ...... WB8DQT 52
A 600-MHz Universal Counter - you'll freq out over this one ...... W4VGZ 58
Top-Banding the DX-60B - Part II: a companion vfo ...... WB1ASL 64
An Amp for QRPp Addicts - build this resistive step attenuator for low, low power work ...... WA0RBR 68
The Center-Fed Bizarre - would you believe an indoor antenna for 80? ...... N6RY 72
Clean Sweep for the FT-221 - don't miss the action ...... WB0LLP 82
A New Frontier - weekends were made for.. 10 FM! ...... K4TWJ 84
Scanner Magic for Heath's 2036 - grab your October 79 issue for Part I of this project ...... WA4BZP 88
HV Power Rectifiers - amplifier builders should read this one ...... WB2WIK 92
Cheap Connectors for Half-Inch Hardline - at your neighborhood hardware store ...... WD4LWC 100
The Microwave Midget - this WEFAX converter features something different -an active mixer ...... W3KH 106
The Amazing Bobtail... Our Readers Respond - more ideas for using and modifying this easy-to-build antenna ...... W8HXR 110
Single-Tone Paging for Wilson HTs - simple circuit should work with many rigs ...... W4BF 112
Teletext and Viewdata: Are You Ready for the Information Boom? - coming soon to a living room near you: video data services ...... WB9KPT 120
Double-Duty CW Keyboard - helps you on receive as well as transmit ...... K1GN 126
Sixteen Channels of Digital Delight - do-it-Yourself data acquisition ...... WB4UHY 132
A Computer-Controlled Talking Repeater - Part III: interfacing to the microcomputer ...... WA6AXX 138
Make a Microcomputerist Smile - build him this EPROM eraser ...... AL7G 148
Build a Talking Digital IDer - K20AW redesigns his IDer at last ...... K2OAW 162
Index courtesy of
http://www.qsl.net/kb9mwr/files/ham/73.html.