why does my pickup buzz when I touch it?

Discussion in 'Luthier's Corner' started by Philthy, Oct 27, 2003.

  1. Philthy

    Philthy Supporting Member

    Jun 12, 2001
    Flanders, NJ
    I put a bartolini MME triple coil musicman replacement pickup in my stingray 4 string with stock preamp. I wired it in parallel according to the instructions. It sounds great. However, whenever I touch the pickup (without touching anything else) it buzzes. The control cavity, pickup cavity and pickguard are all shielded. When I touch the stings, bridge, etc the buzzing will stop. Any idea what this could be?

    I also did some further investigation and fiddling around and I reversed the wires going to the preamp. (the hot pickup wire to the ground on the preamp board and the ground pickup wire to the hot on the pickup board). The buzz is gone when I touch the pickup. However, the output seemed to have sounded a bit better with the original wiring that I first did.

    Any suggestions on is happening and how I can fix it?

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