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  1. R

    Demco demon 500 plus

    I got it in a trade and the previous owner stated it won't transmit. Is it a keying transistor and what part do I need to replace? BTW, yes I know about high voltage in these amps. Thank you.
  2. R

    Trc 457 tinny audio on ssb

    A buddy's trc 457 has very tinny audio on ssb. Hes asking if there's a way to remedy the audio. Hes tried several mics including the stock mic.