73 Amateur Radio Today – January 1970 Issue
Issue Contents:
Single Sideband AM-fM Modulation System
– Using easily available filters …… W2BSP 4
The Transceiver Companion
– Does everything but change the baby …… W6AJZ 10
A Simple Bench Power Supply
– For those readers with simple benches …… ZL2AMJ 22
Slow Scan Color Transmission
– See cover for illustration of results …… Tarr W4UMF 28
Fascinating Fundamentals : Volta and His Piles
– Zap! …… W2FEZ 36
The Manuscript Game
– Another construction article flushed out …… K6MVH 40
Base-tuned Center-loaded Antenna
– Vertical antennas are not basically bad …… W2EEY 42
Quazar QRP 40 Meter DSB Transmitter
– Solid state to boot …… WA5WWN 46
Simple Compact Six Meter Bandpass Filter
– Cuts down your channel 2 DX …… WA5SWD/6 48
Low-cost Electronics: Japan’s FM Invasion
– FM Changes from surplus to imports …… K6MVH 50
Mobile CW
– On the freeways no less! …… K6RA 54
Extra Class License Course Part XII
– Semiconductors. Last chance to learn this …… Staff 57
A Pre-amplifier for Ten-meter Bands
– Also works on CB but don’t tell anyone …… WA3HMN 76
Proper Use of Silicon Rectifier Diodes
– Diode poppers arise stamp out this stuff …… K3DPJ WA3ACL 77
Converting the 4CX1 000A into a Lamp
– Excellent application for your spare tubes …… K3QKO 80
Facsimile and the Radio Amateur
– Are you missing out on FAX fun? …… K6GKX 82
Tunable Solid State IF
– 28-30 MHz i-f for use with UHF converters …… K1CLL 88
73 Amateur Radio Today – January 1970 Issue
