73 Amateur Radio Today – September 1967 with Index
Issue Contents:
The Synchronous Detection Process
– If you must use AM get the most out of it …… W3DUQ 6
A 160 Meter Sidewinder
– A sideband package for the low-band …… W6JTT 12
Building Blocks
– A 12 to 18 MHz receiver for VHF converters …… WB2EGZ 17
VSWR Supreme
– A compact VSWR unit that can be built into your rig …… W4BRS 20
Dual-band Use of Single-band Beams
– Get the most use out of those antennas …… W2EEY 26
Grounded-grid Filament Chokes
– How to design and wind your own …… W6RET 30
200 Hertz CW Filter
– Maximum selectivity with telephone coils …… K7UDL 34
Observations of Note by a VHF Addict
– Hilltopping in Southern California …… WB6JLC 37
Getting a Start in Amateur Television
– Off on the right foot …… WA2EMC 40
A Compact Linear Amplifier
– 500 watts in a small package …… VE2AES 44
Cathode Keying Filter
– Getting rid of key clicks …… W6BLZ 48
A Simple Resistance Bridge
– Precision resistance measurement at low-cost …… VE3AHU 51
Compact Heat Sinks
– Using copper pipe caps for cooling semiconductors …… Ives 52
Evaluating Antenna Feed Systems
– Using time domain reflectometry …… W7QAG 56
Cheapskate’s “On the Air” Sign
– Eliminating in-shack interference …… WN3EWV 62
Relay Energization in Fixed and Mobile Equipment
– Just what the title says …… VE4RE 64
How to be a Ham – By Really Trying
– It isn’t hard if you try …… VE3GLX 66
Do-it-Yourself Mobile Mount
– Nice looking but simple floor mount …… W6APE 68
Washing Out Your (Antenna) Shorts
– Keep road salt and water out of your mobile antenna …… W3RZD 70
A Polarity Sensitive Meter for the Sightless
– Used for checking diodes capacitors and resistors …… WA2BCX 72
Climbing the Novice Ladder: Part 10
– FN offers Judy and Joe some sage advice …… W7OE 74
Trindade Island DXpedition
– The DX-capades of PY2BZD/pY0 …… PY2BZD 82
Gus: Part 27
– Gough Island …… W4BPD 84
DX’ing
– How to get the most out of chasing DX …… W2NSD/1 88
The Knight-kit KG-663 Low-voltage Power Supply
– An excellent power supply for the ham shack …… W1DTY 94
Heathkit SB630 Control Console
– Handsome mate to the SB301 and SB401 …… W2DJL 96
73 Amateur Radio Today – September 1967 with Index
