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fender original '62 pup question

Discussion in 'Pickups & Electronics [BG]' started by john_chimpo31, Jul 23, 2009.

  1. Jul 23, 2009 #1
    john_chimpo31

    john_chimpo31

    Jul 14, 2008
    I just put a set of fender original '62 pups in my pbass. They sound great but have a slight hum that only stops when I touch the volume or tone knob. I believe I wired them correctly but I am wondering if maybe something is grounded incorrectly. has this happened to anybody before? If so how did you fix the problem? By the way the pups are great!
     
  2. Jul 23, 2009 #2
    megadan

    megadan

    Jun 10, 2006
    Halifax, Nova Scotia
    Classic grounding issue. Check that the grounding wire is secure under the bridge, and that everything is well grounded to one point on the bass. Check for cold solder joints.

    Good grounding in a bass is something of a black art.
     
  3. Jul 24, 2009 #3
    john_chimpo31

    john_chimpo31

    Jul 14, 2008
    I'll take a look at that tonight.
     
  4. Jul 25, 2009 #4
    walterw

    walterw Supportive Fender Commercial User

    Feb 20, 2009
    alpha-music.com
    right. that hum should go away when you touch the strings, too. there should be a wire that sticks out of a hole under the bridge, and goes to the back of a pot, so that the bridge itself is connected to ground.