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Buzz

Discussion in 'Pickups & Electronics [BG]' started by Vorago, Mar 4, 2006.


  1. Vorago

    Vorago (((o)))

    Jul 17, 2003
    Antwerp, Belgium
    Ok, here's the problem.

    I play a MIM Jazz with Di Marzio jazzpickups in it, not sure what type, but the polepieces are black, with a screwwire-look on the outside and white covers.

    I play with my thumb resting on the E string, which causes it to touch the "polepieces" in my pickup. Whenever I do that, I get a hum from my pickup, that increases if I turn the volume of my pickup. If I play bridgepup only with my thumb resting on the neckpup I don't have any noise, and vice versa. You get the deal.

    Someone told me this is normal for all Jazz Basses, but I don't believe that.

    My guess it's a grounding issue, any ideas and how to fix it?
     
  2. BassManPatsFan

    BassManPatsFan Supporting Member

    Feb 20, 2004
    San Francisco
    It sounds like you have the same DiMarzio Model Js that I have. Are the pickup covers white or cream?

    Anyway, more importantly, lots of j pups especially the DiMarzios have this issue. I don't think there's any certain way to fix it, but you can try shielding your cavity and doing some star grounding. Other than that I can't really help you.

    I think the reason for this is that the pickups contain two different coils, one for the E and A strings, and one for the D and G. Somehow this causes extra buzzing when you touch the polepieces. I'm no electronics expert, so take this with a grain of salt.

    -Alex
     
  3. Vorago

    Vorago (((o)))

    Jul 17, 2003
    Antwerp, Belgium
    Kinda creamy, thanks for the reply :)
     
  4. BassManPatsFan

    BassManPatsFan Supporting Member

    Feb 20, 2004
    San Francisco
    Nooooooo problema.
    -Alex