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What's that buzz ...???EHX BlacK Fingers!

Discussion in 'Effects [BG]' started by larrytron, Feb 26, 2004.

  1. Hi everybody!
    I bought a EHX Black Fingers several monthes ago. It was working great, but now,
    I noticed after 20 or 30 minutes of use that a buzz was coming.
    When I switch off the effect the buzz disappears, when I switch it on, i've got to wait a few minutes before it comes up again.
    Could it be a tube issue(there are 2 12ax7)? I was told by a friend that they sometimes get microphonic(something like that!).
    Any input is welcome:hyper: :help:


    Nov 24, 2001
    New York,NY
    ...did you try a different tube yet?

  3. tplyons


    Apr 6, 2003
    Madison, NJ
    Sounds tube-related to me.
  4. I didn't but I prefer to ask you before to change the tubes. it might be something else and as I don't know anything in electronics...Anyway, I'll change the tubes and tell you what's going on afterwards.
  5. mike mcd

    mike mcd

    Dec 11, 2002
    I don't know why, but I can tell you my friend has one and it has done that since he received it. I think it is a grounding issue, because it goes away when you touch the pedal or when you prop it on another metal object(I noticed this when it was on top of the handle on top of his Strawberry Blonde).
    Without the noise, the pedal is awesome. I would love to have one but I can't deal with that buzzing, it is quite severe. I did some searching and have found others mention that EH pedals can be noisy and quirky, so I don't know. I thought he just got a bad pedal, but it seems he isn't the only one.


    Nov 24, 2001
    New York,NY
    ...hmmm, that sounds like a very likely cause. I had a similar instance with a rack mount unit...

  7. If it was a grounding issue, I figure the buzz would come as soon as the pedal is plugged or switched on. But no, it just come after several minutes of use. It could be a grounding issue,though, I'm not a specialist. All I can say is that the buzz is still there wether I touch the metal box or not.It just go when I switch (or plug)off the pedal. I tried the pedal at home, on stage... almost everywhere with different basses and guitars! After a few minutes, as soons as you come to the conclusion it's gone:"Bzzzz! I'm back:spit: ".It's vicious...
    If ever it would be a grounding issue, is there a way to fix it up?


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