volume pot hum on a J-bass?

Discussion in 'Pickups & Electronics [BG]' started by gvelush1, Mar 4, 2014.


  1. gvelush1

    gvelush1

    Joined:
    Feb 20, 2013
    Location:
    new haven connecticut
    so on my Jazz Bass, i get a wicked hum unless the two volume knobs are turned to matching settings...i usually just keep them both at 10 and use the amp and the fingers for dynamics but i'd like to nip this one in the grundle.

    so...is it a shielding issue? a grounding issue? insanity?
  2. DiabolusInMusic

    DiabolusInMusic Functionless Art is Merely Tolerated Vandalism Supporting Member

    Joined:
    Dec 22, 2010
    Location:
    Saskatoon, Saskatchewan
    Is the hum affected by you touching metal/strings/bridge? If the hum goes away when touching metal you have a shielding issue, if it gets louder you have a ground issue. If the noise remains unaffected it is probably just due to the single coils picking up electrical noise and nothing you can do, but I would double check the wiring anyways, specifically the ground wire under the bridge. The pickups become humbuckers when both turned on full.

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