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guitar hum

Discussion in 'Guitars' started by osmuir, Oct 14, 2001.

  1. osmuir

    osmuir Member

    ok, so i was playing around with some guitar and bass sounds. when i pluged into my lexicon signature 284 tube ampy thing, all was well and good but the direct tone wasn't rockin' it for me [bitching as an actual amp, though...]

    so i DI'd into my amazing sounding pendulum mic pre/di thingie...great tone, but this horrible buzzing when i took my hands off any metal on the bass or gtr. the tone knob on the bass made it mostly die, [cause it was high pitched?].

    i this a grounding problem with the instrument, mic pre? what? everything is plugged into the same outlet, granted w/no power conditioning.

  2. anonymous

    anonymous Guests

    Aside from 'teaching it the words' (so it stops humming), one of the remedies for this is to run a wire from the bridge of the guitar to part of your body (I usually suggest the ankle, less hair there than alot of places). I recommend using 'medical adhesive tape' to keep the wire on.
  3. osmuir

    osmuir Member

    now, i thought about that, and then i thought i was full of $*^t. what the hell makes this happen? common problem? why does it [have to :( ] happen with my beautiful MDP-1 and not the lexicon amp?

    the instruments involved:
    1971 fender p bass
    1986 [or so] gibson sg 1969 special edition [how i wish it had the cooler pick guard of the new ones].

    is this gonna piss of my clients cause it's "my fault?" i would just feel kinda stupid whipping out the tape on a session.

    guess it's better than electric shock...

  4. MadMoose

    MadMoose Active Member

    It's because you (or the player) is no longer making contact with the instrument so you have an open ground. Fletchers advice is the best way to solve it if it's really a problem. It has nothing to do with the DI or anything. It'll still happen with one guitar plugged into an amp.
  5. osmuir

    osmuir Member

    but can you ground the guitar electronics? w/o taped wire to person?



    maybe i'll just get a really advinced paperclip necklass and rock out less.
  6. MadMoose

    MadMoose Active Member

    Yes. Most guitar electronics are grounded. The problem is that when you lift your hands your breaking ground, the circut is open.
  7. e-cue

    e-cue Active Member

    Were you barefoot (shoeless) when this occured?
  8. e-cue

    e-cue Active Member

    And, Was it a passive or active DI box???
  9. MadMoose

    MadMoose Active Member

    What would being barefoot have to do with it?

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