Pedalboard grounding question

Discussion in 'Effects, Pedals, Strings & Things' started by jackrussel, Oct 3, 2008.

  1. jackrussel

    jackrussel Member

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    Hey guys!

    Is it safe to connect the groung wire on the power strip where i have my psu's connected to the aluminium part on my pedalboard?
    Seems i get less hum when i touch the metal parts of the case (while i'm already touching the strings on my guitar).

    Thanks!
     
  2. Cap'n Fingers

    Cap'n Fingers Member

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    I'd like to hear an answer to that too.
    I wouldn't think that would be a good idea.
    Seems like fixing the ground issue, (at the source),
    is a better idea.
     
  3. jackrussel

    jackrussel Member

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    I see what you mean, but the amp and pedalboard are both connected to a grounded outlet.

    Now the amp is properly grounded because it has a ground prong that comes from the chassis or whatever, into the power cord, into the grounded outlet.

    But from the pedalboard the is no ground going into the outlet.
    Now if i touch the metal parts on the pedalboard case there is no hum, zero.
    So that must mean that some noise is going into the pedalboard case, and since it is not connected to ground... noise isn't being diverted into ground... (pardon the redundancy) right?
     
  4. jackrussel

    jackrussel Member

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  5. Cap'n Fingers

    Cap'n Fingers Member

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    I see, your pedals are powered by a non-grounded source.
    I don't think you'd have a problem with what you've suggested
    as long as you know the ground is really a ground and not
    carrying current. Some older buildings may have a slight current
    in the ground. It's not against code but it plays havoc with micro
    processors.

    It's nice to have a little wall outlet tester when you go to gigs
    just to make sure the outlets are wired correctly. Commonly
    I find No ground and then hunt down an outlet,
    (if there is one), that is grounded.

    -Mike
     
  6. jackrussel

    jackrussel Member

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    Thanks man, that really helps!

    I've cheeked my board and there is no mechanical connection between any pedal or cable on the board and the metal parts of the case.
    The only thing i can think of is my "power strip" generating an electric field that's being transmitted to the case (sounds sci-fi i know:huh)probably due to the lousy job i did trying to shield it...

    Thanks again!
     

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