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problem solved

  1. PaleAleKing

    SA-8100 bias issues

    Hey all, I'm wrapping up service on a SA-8100 and came across a weird biasing problem I haven't seen before. I just rebuilt the amp board and in part used KSC3503D for the dreaded 2SC1451s. It comes up fine on the dim bulb, except when it's time to adjust the bias. I can set 1 channel to 20mV...
  2. Fasturd

    Pair of Dynaco Mark IV buzz. SOLVED

    New to the Dynaco world. My new to me Mark IV amps have an identical buzz that is too loud to ignore. They were partially updated prior to my ownership and did not buzz at the sellers home. I do not know the make of the boards yet but they are currently running 1 Sylvania 6GH8A on each board...
    • Fasturd
    • Thread
    • 120hz 60hz 6gh8 buzz dynaco mark iv problem solved
    • Replies: 69
    • Forum: Tube Audio
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