73 Amateur Radio Today – April 1963 Issue with Index
Issue Contents:
Adjustable Regulated Power Supply
– Playing around with transistors? Then have: one of these …… W1ISI 8
Diode Noise Generator
– Simple test instrument to tune up converters receivers and stuff …… Thomas 15
Selected Circuits
– Polar relay test set great for the RTTY group …… W4WKM 18
Decibles
– What they are how to use ’em complete with a monograph …… K1MRK 21
Vector VFO
– Simple stable oscillator for 80 meters. Great for DX-60 and the like …… W7IDF 24
Wee Birdcage
– Restricted space antennas are always of interest …… K3LNZ 26
Protect Your Investment
– How to modify your gear without disastering the resale value …… W4WKM 30
A Survey of Mobile Transceivers
– There are quite a few …… Staff 32
Cartoon
– Ha! …… Rodgers 49
Dress Up Home Made Gear
– It doesn’t really have to look like you made it in the cellar …… W0OPA 50
Find the Common Ground
– Some suggestions which may improve the interest of your contacts …… K4ZQR 52
Controlled Carrier Screen Modulation
– Putting it into perspective …… K3LNZ 54
Compact VFO Dial
– Using turn counting dials for multi-turn coils PTOs etc …… W4WKM 56
Making Etched Circuit Boards
– Full instructions for a not very hard process …… W1ISI 58
Oversight
– Simple addition of a choke which keeps DC off your antenna and you off the floor ……WA2HYS 62
All About Sideband
– Well almost all anyway …… Staff 66
Junk Box Station
– Shows how easy it really is to build up a station out of stuff …… W4MLE 70
The NCX-3
– 73 test report …… W2NSD 78
Solving the Bird Problem
– Plaintive plea for cleaner signals …… W5HJV 80
How Low Can You Go?
– Tuning from 10 to 500 kHz …… K4ZGM 82
High-efficiency Switching
– For that custom final …… W4WKM 88
The SW-240
– 73 test report …… W2NSD 90
Stimulus in the Space Age
– Amateur telemetry balloons and all that ya ….. W1WQH 92
Waters Switches
– For antenna switching etc. Coax switches …… K2CM 98
Inexpensive Coax Connector – Adaptor System
– Inexpensive and flexible way of piping small amounts of VHF around …… W4WKM 102
Plot your Skip Zones
– Do-it-yourself propagation system …… W9QKC 104
One Ham in a Million!
– Well one in 350 000 anyway. Story about 5X2JKO in Nigeria …… K9AMD 106
What is a Ham?
– Permission granted to reprint this in non-ham magazines etc …… K7GPZ 108
The Heath HX-30
– Test report submitted by 73 reader on Heath six meter SSB transmitter …… W3WTO 112
73 Amateur Radio Today – April 1963 Issue with Index
