Thread: UTC / RCA Transformer F-1233, A-30, A-21, RCA input trans..?
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Old November 20th 07, 12:44 PM posted to rec.radio.amateur.boatanchors
Jerry McCarty Jerry McCarty is offline
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First recorded activity by RadioBanter: Aug 2006
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Default UTC / RCA Transformer F-1233, A-30, A-21, RCA input trans..?
UTC A-21: Mixing, Matching Transformer

Primary: 50, 200/250, 500/600 ohms
Secondary: 50, 200/250, 500/600 ohms
30-20000 cps response, +15 dBm

Reference: the one sitting on my desk at the moment

UTC A-30: Audio Choke

450 Hys @ 0 mA, 250 Hys @ 5 mA, 6000 ohms DC,
65 Hys @ 10 mA, 15000 ohms DC

Reference: http://www.bunkerofdoom.com/xfm/UTC_1960_WEB/UTC60.HTML

Sorry, can't help with the others
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