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svetlana

  1. johnnytheg

    A question about biasing new tubes

    Hi all, I just replaced seven year old Svetlana EL34 tubes (one of the tubes shorted) with Mullard re-issues. When I hooked up the new tubes and let the amp warm up (twenty minutes) I hooked up my multi-meter. The previous older tubes had the bias set to 1.56 (dynaco specifications) but when I...
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