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#13
August 27th 08, 04:44 PM
posted to rec.radio.amateur.boatanchors
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Johnson T-R switch receive port output levels?
Ive seen it proposed that you connect to the valve anode .via a high
voltage cap ...never tried . looked a bit risky with 3/4 kv of rf .. but i suppose that would prevent the 'suck out' from the pi tank cct .. the rx would be looking through the cct , as long as the vlave was biased off .. not too much noise ? G .. On Aug 23, 1:15*am, "COLIN LAMB" wrote: I vaguely recall that some T/R electronic switches added the bandswitch to eliminate suckout. 73, *Colin *K7FM |
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