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Related to the burst keyer, I never got as far as trying the AFC adjustment procedure listed on page 23 of the RCA service clinic manual (specifically, adjusting T112, the phase detector transformer, or R228, the AFC balance control, which affect the keyer output). Pages 46-48 have more info.
Is it OK to use my digital multimeter for voltage measurements in those procedures, or will it load down the circuits too much? I don't have much faith in my old RCA Voltohmyst, but I could try using the scope for voltage measurements instead.
Phil Nelson
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