{"id":2390,"date":"2020-07-03T21:32:49","date_gmt":"2020-07-03T21:32:49","guid":{"rendered":"https:\/\/www.snapwhole.com\/index.php\/73-amateur-radio-today-january-1970\/"},"modified":"2023-01-17T01:05:10","modified_gmt":"2023-01-17T01:05:10","slug":"73-amateur-radio-today-january-1970","status":"publish","type":"page","link":"https:\/\/www.snapwhole.com\/index.php\/73-amateur-radio-today-january-1970\/","title":{"rendered":"73 Amateur Radio Today – January 1970 Issue"},"content":{"rendered":"\n

73 Amateur Radio Today – January 1970 Issue<\/span><\/p>\n\n\n\n

Return to 73 Amateur Radio Today Archive<\/a><\/d3><\/center>

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Issue Contents:<\/span><\/h3>\n\n\n\n

Single Sideband AM-fM Modulation System<\/h3>\n\n\n\n

– Using easily available filters …… W2BSP 4<\/p>\n\n\n\n

The Transceiver Companion<\/h3>\n\n\n\n

– Does everything but change the baby …… W6AJZ 10<\/p>\n\n\n\n

A Simple Bench Power Supply<\/h3>\n\n\n\n

– For those readers with simple benches …… ZL2AMJ 22<\/p>\n\n\n\n

Slow Scan Color Transmission<\/h3>\n\n\n\n

– See cover for illustration of results …… Tarr W4UMF 28<\/p>\n\n\n\n

Fascinating Fundamentals : Volta and His Piles<\/h3>\n\n\n\n

– Zap! …… W2FEZ 36<\/p>\n\n\n\n

The Manuscript Game<\/h3>\n\n\n\n

– Another construction article flushed out …… K6MVH 40<\/p>\n\n\n\n

Base-tuned Center-loaded Antenna<\/h3>\n\n\n\n

– Vertical antennas are not basically bad …… W2EEY 42<\/p>\n\n\n\n

Quazar QRP 40 Meter DSB Transmitter<\/h3>\n\n\n\n

– Solid state to boot …… WA5WWN 46<\/p>\n\n\n\n

Simple Compact Six Meter Bandpass Filter<\/h3>\n\n\n\n

– Cuts down your channel 2 DX …… WA5SWD\/6 48<\/p>\n\n\n\n

Low-cost Electronics: Japan’s FM Invasion<\/h3>\n\n\n\n

– FM Changes from surplus to imports …… K6MVH 50<\/p>\n\n\n\n

Mobile CW<\/h3>\n\n\n\n

– On the freeways no less! …… K6RA 54<\/p>\n\n\n\n

Extra Class License Course Part XII<\/h3>\n\n\n\n

– Semiconductors. Last chance to learn this …… Staff 57<\/p>\n\n\n\n

A Pre-amplifier for Ten-meter Bands<\/h3>\n\n\n\n

– Also works on CB but don’t tell anyone …… WA3HMN 76<\/p>\n\n\n\n

Proper Use of Silicon Rectifier Diodes<\/h3>\n\n\n\n

– Diode poppers arise stamp out this stuff …… K3DPJ WA3ACL 77<\/p>\n\n\n\n

Converting the 4CX1 000A into a Lamp<\/h3>\n\n\n\n

– Excellent application for your spare tubes …… K3QKO 80<\/p>\n\n\n\n

Facsimile and the Radio Amateur<\/h3>\n\n\n\n

– Are you missing out on FAX fun? …… K6GKX 82<\/p>\n\n\n\n

Tunable Solid State IF<\/h3>\n\n\n\n

– 28-30 MHz i-f for use with UHF converters …… K1CLL 88<\/p>\n\n\n