Background humming

Posted by Peter Taylor on January 28, 2010 at 9:54pm
Hi, I have just purchased a used Maniac guitar amp, it works fine except it has a constant background humm, even with nothing plugged into it.
Any ideas on what could be the problem, even better how to fix it?
Thanks in advance...

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Replies

  • Peter Taylor January 31, 2010 at 7:20am
    Thanks Zack..
  • Zack Alderfer January 30, 2010 at 5:10pm
    usually a bad hum is a poor ground on the chassis...open the amp (only if you're familiar with high voltage electronics) and trace the grounds
  • Peter Taylor January 30, 2010 at 2:00pm
    Thanks Dave, no mine is worse than that one, think i will take it to local electrical shop to get checked out, may just be a worn capacitor or dry solder joints...
  • David L. January 29, 2010 at 6:30am
    Hi Peter,

    How bad is the humm? I checked out youtube and if the amp is the same as the one demonstrated that also seems to have a slight humm (although it could be the recording)
    https://www.youtube.com/watch?v=XQeMu8p-Ee8
    One good thing though is the person realised the microphone socket has a delay on it that you can use for a guitar effect
    https://www.youtube.com/watch?v=vle5nNoAQyw

    David
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