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Fender Volume/Tone pedal show & tell & question

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  • Fender Volume/Tone pedal show & tell & question

    I recently got this. It's a loan for now, but it may be too cool to give back. It's an old and abused Fender volume/tone control. As you can see below, it rocks to control the volume and the top plate rotates to control tone. I could see rewiring it to become dual-parameter control for a synth or other processor that takes TRS expression input but for the moment, I'll use it as it. But it's pretty ancient and the pots need cleaning or replacing. Is this likely to become a monster PITA?

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    Last edited by pogo97; 06-03-2018, 08:05 PM.
    There is more than one way to do this. Notes Norton

  • #2
    Is this likely to become a monster PITA?
    To replace the pots and put the cords back? Depends on your skill & comfort level with soldering and electro-mechanical stuff in general. For someone who's worked on pedals or amps, it shouldn't be too hard. Probably need some tools some people don't have, like an allen (hex) wrench to take the pulleys off of the pot shafts.

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    • #3
      Originally posted by Mr.Grumpy View Post
      To replace the pots and put the cords back? Depends on your skill & comfort level with soldering and electro-mechanical stuff in general. For someone who's worked on pedals or amps, it shouldn't be too hard. Probably need some tools some people don't have, like an allen (hex) wrench to take the pulleys off of the pot shafts.
      Well, my experience is that nothing is as easy as it looks to be. I can solder just fine -- took electronics for four years in high school -- and have the tools (the set screws for the pulleys are slot head, though I have allen keys). I'm hoping that a good cleaning will do the trick, but I'll have to get some deoxit first. And if that's not effective, then I'll need to find and order the appropriate pots, which may or may not be easy. This unit is probably fifty years old.
      There is more than one way to do this. Notes Norton

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      • #4
        The pots tend to be a heavy duty design. I'd suggest you measure the pot with the pedal unplugged and see what the pot value is, then see if you can find a replacement.

        Cleaning may give you back temporary operation but its not going to restore wear on the carbon pad. Typically when a pedals pot goes out, you're wasting your money buying cleaner. I'd just but the new pot and replace it. A new pot will be cheaper then a can of Deoxit so why bother with trying to salvage the old pot. Just replace the thing.

        You'll likely need a solid shaft 250 or 500K pot. Check the markings on the existing pot. You may be able to save some time getting a duplicate.

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        • #5
          Originally posted by pogo97 View Post

          I'm hoping that a good cleaning will do the trick, but I'll have to get some deoxit first. And if that's not effective, then I'll need to find and order the appropriate pots, which may or may not be easy. This unit is probably fifty years old.
          They're "sealed" pots, very similar to the pots in CryBaby wah pedals. Not sure how much good DeOxiD will do, maybe pry the metal tabs back to get at the guts?

          Dunlop sells 'sealed' "Hot Potz" in a 470 k Ohm version for use in passive volume pedals. Not sure if the shaft is compatible with those Fender pot pulleys.

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          • #6
            Originally posted by pogo97 View Post

            Well, my experience is that nothing is as easy as it looks to be. I can solder just fine -- took electronics for four years in high school -- and have the tools (the set screws for the pulleys are slot head, though I have allen keys). I'm hoping that a good cleaning will do the trick, but I'll have to get some deoxit first. And if that's not effective, then I'll need to find and order the appropriate pots, which may or may not be easy. This unit is probably fifty years old.
            Yes, but Fender reissued them a few years back, so getting parts shouldn't pose an insurmountable hurdle for you.

            I've long thought that converting one into a dual expression pedal would be a good idea, but I've never gotten around to trying to do it myself. If you do go that route, you'd probably want to change the value of the stock pots anyway, so you might want to think about that before you try a restoration job on it...



            **********

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            - George Carlin

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            - Bob Lefsetz, The Lefsetz Letter

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            • #7
              Decided that my time would be better spent practising and my money better spent settling debts. Gave it back to my friend. He knows someone else who is interested. Learned some useful stuff in the meantime. Thanks for the input.

              Interesting pages on volume pedals here: https://bb.steelguitarforum.com/viewtopic.php?t=190077

              and here: http://www.mk-guitar.com/2008/09/10/...ow-i-use-mine/
              There is more than one way to do this. Notes Norton

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