Grounding Issues

Discussion in 'Tele Home Depot' started by jessecoffee, Jan 12, 2009.

  1. jessecoffee

    jessecoffee TDPRI Member

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    I'm working on building a lap steel (with some great help and suggestions from RomanS, thanks again), and I'm installing the pickup.

    I got a Lollar P-90 and when I soldered it all up, I'm having some serious ground issues. There is an extremely loud hum when my hands are on the strings or the saddle, and the volume is non existent until it's turned almost all the way up. The tone seems to work fine.

    The bridge and saddle were machined by my cousin for me out of bronze. I'm not sure if that makes any difference.

    This is the diagram I am using:

    http://www.seymourduncan.com/support...atic=1phat1v1t
    __________________
     
  2. Guitar_Ninja

    Guitar_Ninja Friend of Leo's Ad Free Member

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    Make sure that the output jack is wired properly. If you reverse the hot and ground leads at the jack you can get intense hum when touching the strings.
     
  3. braderrick

    braderrick Tele-Afflicted

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    I'm gonna bet Guitar_Ninja is correct. That hum and buzz (if you have any) should go away when you touch the bridge or strings. Swap those output jack wires around. If it's a switchcraft the black or ground wire goes to the smooth terminal and the white or hot wire goes to the terminal with the notch in it.
     
  4. jessecoffee

    jessecoffee TDPRI Member

    Age:
    33
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    Location:
    Ada, OK
    It is a switchcraft jack, and that was the problem. This thing sounds great now. I'll post pics soon!

    Thanks for the help.
     
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