73 Amateur Radio Today – July 1969
Issue Contents:
Confessions of an Appliance Operator
– This article is not for those of precarious health …… K1YSD 2
The Ancient Modulator
– AM? Yes. indeed… for 160M 2M etc. PP 1625 mod …… WB6BIH 14
A Slow Scan Television Signal Generator
– Things are really happening on SSTV. Now you can join the fun …… K7YZZ 16
Six Meter Linear Amplifier
– One kilowatt for 10 cents a watt. Why not be heard ? …… WA0ABI 20
A New Way to QSL
– Simpler. ..Less expensive … faster …… ZE7JV 24
Kilowatt Amplifier for 420 MHZ
– Sneaky water-cooled final that perks away as you talk …… W2CLL 27
4 Thirty Two’er
– Converter and transmitting converter for 432 …… WA3AQS 32
CW Can Get Your Goat
– Rettuesnesnon …… K7TTA 36
Rio O’Oro
– DXpedition to EA9 complete with incredible frustrations …… W4QCW 38
Trouble Shooting Antennas
– Clever ways to find out what’s wrong from the ground …… W2OLU 44
Six Meter IC Converter
– Two IC’s some tuned circuits and a crystal …… K2ZEL 46
Radio Control Revisited
– Model airplanes and their modern sophisticated control …… WlOLP 49
Long Range Propagation Forecasting
– Our expert explains his magic system …… Nelson 62
Simple and Effective RTTY Terminal Unit
– Two IC’s two tuned circuits and not a lot more! …… W6JMM 65
Facts and Fads
– More history uncovered with negligible reverence …… WlUSM 68
An IC Audio Notch Filter
– One IC some resistors and pots and presto …… W2EEY 72
Converting the VRC-19 for VHF FM
– Another attempt to boost the FM population explosion …… W6JTT 76
The Greatest DX of All!
– Solar flare detector …… K5JKX 80
Intelligent Tube Substitution
– Lovely article for tube fans …… K3LNZ 88
Passive Reflectors for Amateurs
– Most of us have wondered about this. Here is the info …… W7EEX 91
Modification of the Heath HW18-3 VFO
…… W8QUR 100
Whip Antenna Add-ons
– VHF mobileers can get more gain and directivity …… W2EEY 104
Two Meter Transistor Exciter
– All transistor …… W6AJF 108
Extra Class Study Course Part VI
– The new license is a snap with this series …… Staff 112
A Stable HF VFO
– Transistorized PC vfo for the DX-40 or any other rig …… WB6BIH 128
73 Amateur Radio Today – July 1969
