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tone switch

  1. goldswimmerb

    Apt Holman Preamplifier Tone Switch Pop

    Hey all, I have an APT Holman Preamplifier I recent recapped and gave some new transistors as the 2SC1345s had gone noisy. I have it all back together now and everything is working beautifully, however, if I switch the tone defeat switch on/off the unit gives out a fairly decent bit of DC...
  2. Richs_Trains

    MARANTZ 1090 ISSUES

    Hey guys, some advice if possible. I bought a beat up 1090 and figured I would try a re-cap and see how I do. I replaced all the electrolytic caps with same value audio grade caps, but did not change any ceramic or film caps. The unit had issues when I bought it and the re-cap did not change...
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