73 Amateur Radio Today – July 1967

73 Amateur Radio Today – July 196 with Index

Issue Contents:

North of the Border

– Amateur radio in Canada …… VE1TG 6

Suppressed Carrier Amplitude Modulator

– Double-sideband adapter for AM rigs …… VE7PQ 10

A Homebrew 50-foot Tower

– Low-cost self-supporting tilt-over construction …… VE6KS 12

Simplified Transistor Design for the Ham

– It’s easy when you know Ohm’s law …… VE1ADH 14

VE0 Ahoy

– Canadian maritime-mobile stations …… VE1TG 22

World’s Fair – 1939

– And the W2USA radio club…… Staff 30

Plain Ground Plane: Antenna

– An economical antenna for working DX …… VE7BBM 36

The Hybrid G4ZU Superbeam

– A very effective three-band beam for 10 15 and 20 …… VE3AHU 38

A Slow-scan Television Monitor

– An economical design using surplus components …… W9VZL 42

FET Pre-amplifiers for 144 and 432 MHz

– 2.5 dB noise figure on 432 …… W6OSA 48

A 30 MHz IF Strip Using Integrated Circuits

– 85 dB gain in a small package …… W7AKS 52

An Un-guyed Vertical Antenna

– Very useful for small backyards …… W6JTT 56

Two Cheap Crank-knobs

– Great arm savers for wide tuning ranges …… VE3BUE 58

The Tri-amp

– Versatile audio test unit …… K6UGT 61

Wide-range VHF-uHF Dipper

– 130 to 1 300 MHz with transistors …… K1CLL 64

A Few Tower Hints

– Protecting your rotator against the weather …… WA1ABP 70

Monitoring With an Oscilloscope

– Check the quality of your transmissions …… W0OPA 72

The Basic Desk

– A neat operating desk for the itinerant operator …… W0QOJ 76

Is Rock Bounce Practical?

– Mobile experimenters take note …… G3BID 78

Moonray

– Amateur radio on the moon …… W1DTY 80

Transmit Control With the 32S-1 Receiver

– Without modifying the receiver …… W6EUV 82

Project: High School Amateur Radio Club

– How to get one going and maintain it …… WA0NDV 84

Heath HR-10 Modifications

– Increased sensitivity and selectivity …… VE3FYL 86

Glub Glub I’m Drowning

– In a sea of noise …… WA0NQL 88

The Galaxy V Mark 2

– A review of Galaxy’s newest transceiver …… W1DTY 94

The Heathkit SB401 Transmitter

– Benton Harbor’s new companion to the SB301 …… W2DJL 98

Climbing the Novice Ladder: Part 8

– Judy and Joe approach the pinnacle of achievement …… W7OE 102

Gus: Part 25

– Capetown South Africa …… W4BPD 108

73 Amateur Radio Today – July 1967

Return to 73 Amateur Radio Today Index


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