Wah pot question

Discussion in 'Effects, Pedals, Strings & Things' started by PEImatrix, Oct 20, 2008.

  1. PEImatrix

    PEImatrix Member

    Messages:
    402
    Joined:
    Aug 18, 2006
    Location:
    Canada
    I've had my Vox wah mod'd quite a bit, but I'm not totally happy with it.
    The pot isn't scratchy at all, but the sweep seems weird. It's like there is a huge dead spot. I rock the pedal forward almost halfway before the tone changes, and then it's all at once. Just wondering if upgrading the pot might fix this.
     
  2. mistercoffee1

    mistercoffee1 Member

    Messages:
    693
    Joined:
    Apr 19, 2007
    Location:
    Orange County, CA
    What mods were done to it?
    A new pot may or may not help the sweep, depending on what was done.
     
  3. PEImatrix

    PEImatrix Member

    Messages:
    402
    Joined:
    Aug 18, 2006
    Location:
    Canada

    True bypass with LED indicator
    Removal of input buffer
    Transistor upgrade
    Power supply mod
    Filtered 2.1mm DC 9V Input
    Increased gain for a slightly dirty, vintage wah tones & awesome lead tones
    Increased Q for a much more vocal wah tone
    Better mid and bass response
    Smoother Heel to Toe transition
    Pedal sweep reset to avoid ice pick highs resulting in better bass and sweeter tone
    Reissue Red Fasel
    a toggle that changes the Q
     
  4. xntrick

    xntrick Member

    Messages:
    3,665
    Joined:
    Sep 16, 2008
    Location:
    chicago area
    try adjusting the gear on the pot shaft before you spend money on a new pot, there is quite a bit more range than you have access to with just the pedal motion...
     
  5. PEImatrix

    PEImatrix Member

    Messages:
    402
    Joined:
    Aug 18, 2006
    Location:
    Canada
    I've tried that. It's not the sweep range, it's the smoothness of the tonal change. Mine sounds very notchy instead of a nice smooth transition.
     
  6. wildschwein

    wildschwein Member

    Messages:
    3,767
    Joined:
    Mar 13, 2008
    Location:
    Alkimos, Western Australia
    Yeah man - I had the same problem with a similarly-modded Dunlop GCB-95 . I just changed out the pot and the improvement was phenomenal. I'm pretty sure my old pot had simply worn out (it would've been a few years old I guess); it almost had no sweep left in it; just a lot of bass a dead mid section and some residual treble at the end of the traverse. Just get a new one - I got an unsealed Icar taper (100k, I think?) made by a company named Diva, sold by an eBayer here in Australia, and it sounds totally vintage and watery. Best thing I ever did after the much needed true bypass mod. Even though it's unsealed I haven't had one crackle yet - can't say that for the sealed Hot Potz unit that came with the pedal which needed constant cleaning.
     
  7. PEImatrix

    PEImatrix Member

    Messages:
    402
    Joined:
    Aug 18, 2006
    Location:
    Canada
    Great! I'll order up a new one. :)
     

Share This Page