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    Ref6 tube rolling

    I have a big stock of 6N6P, I tested many boxes of bulk or NIB 100 pieces the powerful ones and best matched I sell as replacement for 6N30P. Tested on Roetest wich deliver current, gm, gain and curves for each tube, I analyze them and select matched. Usually I select matched quads but at...
  2. T

    Ref6 tube rolling

    I tested many thousands of tubes, including 6N6P and 6N30P and I'd like to clarify few things about replacing 6N30P with 6N6P: - all 6N6P (in russian 6?6?) have gold pated grid; - 6N6P is not perfect equivalent with 6N30P; 6N30P has higher plate current, higher heater current, higher gm but...

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