73 Amateur Radio Today – January 1989 with Index
Issue Contents:
Hacker’s Shack
– Where hardware fantasy and reality meet …… N4RVE 44
Trouble-shooting Guide For Switching Power Supplies
– Chart to help minimize trouble-shooting time …… W9NGP 50
More Microwave Test Equipment For 10 GHz
– Several more uses for the versatile detector mount …… WB6IGP 12
Super Simple Attenuator
– Very cheap -and variable! …… K3OF 14
The 220 MHz All-mode Transverter
– Hard-core home-brewer’s delight …… W6YUY 18
Cheap and Dirty Oscillator
– Fast audio frequency source …… VE1VQ 29
Inexpensive Marker Generator
– Tightwad’s way to stay in calibration …… WB6DFQ 35
Which End Is Up?
– Now it’s a snap to find the coax short …… W7RXV 38
C-64 Voltage Protector
– Protect Commodore’s chips from line over-voltage …… W0YJO 40
New Uses For Old Meters
– Tool any meter to read a variety of values …… KC3YB 58
Simple LED Checker
– Great starter homebrew project! …… Thompson 61
AutoSketch and Amateur Radio
– Economy CAD for home and shack …… VE6BGL 30
Bird Model 4381 RF Wattmeter
– Nice complement to the venerable 43 …… WB9RRT 32
VisiTel On-the-air
– Unique SSTV …… W8ASF 36
Hamcall
– Dial-up callsign directory …… NS1B 46
Coaxial Dynamics Model 81000-a Directional RF Wattmeter
– New kid on the block …… KT2B 80
1934 Official Short Wave Radio Manual
– A don’t-miss for nostalgia buffs …… NR1A 54
73 Amateur Radio Today – January 1989 with Index
