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Extremely Unusual Amp Problem/Situation

Discussion in 'Amps [BG]' started by BassSurfer, Jan 24, 2013.

  1. BassSurfer

    BassSurfer Supporting Member

    Jun 30, 2006
    Likes Received:

    I just picked up an old Ampeg SVT400T which is not producing any sound at all. HOWEVER, for some reason, it is ONLY producing sound when all of the knobs are MAXED out (turned all the way to the right) The amplifier IS turning on and the lights are working too.

    Even after the knobs are "maxed" it cuts out and the sound is gone after about two minutes or so. I can get my money back (I had one of these as a kid and wanted it for sentimental reasons) but I just wanted to know why it would be doing this in the first place.

    Thanks everyone!
  2. B-string

    B-string Supporting Member

    Nov 21, 2008
    Likes Received:
    Have you tried an instrument cable patching the effects send to effects return? Could be a corroded connection inside the effects return jack.
  3. HitByABlimp


    Apr 10, 2007
    Likes Received:
    There could be sooo many reasons for this kind of mailfunction, ranging from caps to pots to bad solder joints. I'd get it to a tech or your money back.
  4. mjac28

    mjac28 50th Anniversary Ed Sullivan February 9, 1964 Gold Supporting Member

    Aug 25, 2010
    Likes Received:

    +1 unless you got it for a super cheap price I would return it and look elsewhere.

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