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Buzz in f/x loop

Discussion in 'Amp Central Station' started by MintBerryCrunch, Nov 19, 2012.

  1. MintBerryCrunch

    MintBerryCrunch Tele-Meister

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    What could it be?

    Tried all individual pedals and none make it better or worse.

    Changed cables and still there.

    Unplug the loop and it goes away...
     
  2. Tle4

    Tle4 Tele-Afflicted

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    If it is tube driven reverb, it could be a tube.... or maybe try cleaning the loop jacks with some contact cleaner and work a plug in and out
     
  3. MintBerryCrunch

    MintBerryCrunch Tele-Meister

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    The f/x loop is tube driven... literally peaceful without the loop engaged... time to go shopping...
     
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  5. MintBerryCrunch

    MintBerryCrunch Tele-Meister

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    new 12At7, same old hum... possibly slightly better.

    I'll get some contact cleaner as suggested before I go ape**** about this

    Would any other tube be even quieter, like an ECC82 maybe?
     
  6. bunny 7

    bunny 7 Tele-Holic

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    ECC 82 (12au7) is a lower gain than a 12at7 so it would be less noisy to some extent in most circumstances. The transconductance is lower than 12at7, but it's designed as a "driver" tube like a 12at7 is as far as function.
    You didn't mention what amp this is in so if it's just an effects loop I'd still give it some contact cleaner and run a cable thru the jacks a few times just to clean any oxidation that might be there.
    Also, check the recovery tube and make sure it's seated firmly.
     
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