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Amateur Radio - Ham Radio Magazine Searchable Index - List by Category

A Searchable Index of the old "Ham Radio" Magazine

"Ham Radio Magazine" was a periodical that ran for almost 22 years from 1968 to 1990. Use this indexed search to quickly find what you'd like to look at and then go purchase the scanned magazines (On CD, elsewhere, or occasionally from some generous download website) or look for the old paper magazine at used bookstores.

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By Title Text By Author Callsign By Year Category

Results by Issue - 'Apr 70'

Category (CatID) Article Author Page Issue
power supplies(20)Operational power supplyWA2IKL8Apr 70
audio(2)Speech processor for ssb, simpleK6PHT22Apr 70
single sideband(26)Speech processor for ssbK6PHT22Apr 70
transmitters and power amplifiers - vhf and uhf transmitters(29.3)144-MHz two-kilowatt linearW6OUV, W6ZO, K6DC26Apr 70
single sideband(26)144-MHz linear, 2 kWW6UOV, W6ZO, K6DC26Apr 70
vhf and microwave - transmitters(31.4)144-MHz two-kilowatt linearW6UOV, W6ZO, K6DC26Apr 70
miscellaneous technical(15)Thermometer, electronicVK3ZNV30Apr 70
features and fiction(7)Catalina wireless, 1902W6BLZ32Apr 70
receivers and converters - general(22.1)Audio filter, variable bandpassW3AEX36Apr 70
audio(2)Filter, variable bandpass audioW3AEX36Apr 70
vhf and microwave - transmitters(31.4)432-MHz rf power amplifierK6JC40Apr 70
transmitters and power amplifiers - vhf and uhf transmitters(29.3)432-MHz rf power amplifierK6JC40Apr 70
single sideband(26)432 MHz rf power amplifierK6JC40Apr 70
receivers and converters - high-frequency receivers(22.2)Overload response in the Collins 75A-4 receiver, improvingW6ZO42Apr 70
commercial equipment(3)Collins 75A-4 receiver, improving overload response inW6ZO42Apr 70
measurements and test equipment(13)Capacitance meter, direct-readingZL2AUE46Apr 70
miscellaneous technical(15)Clock, 24-hour digitalK4ALS51Apr 70
antennas and transmission lines - general(1.1)Dummy load and rf wattmeter, low-powerW2OLU56Apr 70
novice reading(16)Dummy load and rf wattmeterW2OLU56Apr 70
measurements and test equipment(13)Dummy load and rf wattmeter, low-powerW2OLU56Apr 70
measurements and test equipment(13)Sweep generator, how to useAllen60Apr 70
troubleshooting(30)Sweep generator, how to useAllen60Apr 70
transmitters and power amplifiers - general(29.1)Power attenuator, all-band 10-dBK1CCL68Apr 70
transmitters and power amplifiers - general(29.1)Swr alarm circuitsW2EEY73Apr 70
antennas and transmission lines - matching and tuning(1.4)Swr alarm circuitsW2EEY73Apr 70
keying and control(12)Grid-block keying, simple (HN)WA4DHU78Apr 70
keying and control(12)Contest keyer (HN)K2UBC79Apr 70
power supplies(20)Mobile power supply (HN)WN8DJV79Apr 70
construction techniques(5)Rectifier terminal strip (HN)W5PKK80Apr 70
miscellaneous technical(15)Earth currents (HN)W7OUI80Apr 70
transmitters and power amplifiers - general(29.1)Parasitic suppressor (HN)WA9JMY80Apr 70
construction techniques(5)Parasitic suppressor (HN)WA9JMY80Apr 70
vhf and microwave - general(31.1)Coaxial-line resonators (HN)WA7KRE82Apr 70