Hum Marshall 8080 valvestate

Discussion in 'Marshall Amps' started by Jean-Paul Lagaisse, Aug 12, 2020.

  1. Jean-Paul Lagaisse

    Jean-Paul Lagaisse New Member

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    With the volume output and the input on 0 there is always hum to hear in the speaker.
    i did a lot of research on the output amplifier. I did not find defect components. When i remove the power transformer out of the frame and far from the end amplifier the hum
    disappears. Is there someone one that now something about this issue
     
  2. Chris-in-LA

    Chris-in-LA Well-Known Member

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    What happens when you rotate the power transformer 90 degrees and put it back in?
     
  3. Jean-Paul Lagaisse

    Jean-Paul Lagaisse New Member

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    Is it possible that there is a problem wit the tranformer?
     

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