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P-bass tone pot replacement

Discussion in 'Pickups & Electronics [BG]' started by JoakimKr, Dec 20, 2016.

  1. JoakimKr


    Oct 28, 2013
    Tromsø, Norway

    I think my Fender 58' Avri P-bass needs a new tone pot. It suddenly stops working. I stays at "full" or "open" (100% tone) no matter what. If i turn it up or down it makes a scratching sound and doesn't work at all. If knock it and wrestles with it, it sometimes starts acting normal, but it doesn't last for long.
    Is there an easy fix, or do i need a new one? If i need a new one, do you have any suggestions for a good replacement, like Stellartone or something?
  2. ofajen


    Apr 12, 2007
    92.4W 38.9N
    I would just get a new CTS or Alpha pot of the right value (it will either be 250k or 500k). Tone pots should be audio taper, not linear.

    Growlmonkee and Cadfael like this.
  3. Cadfael


    Jan 4, 2013
    Germany, EU
    ofajen posted 98% ...

    2% ...
    1%: Typical for a P bass is a 250k pot.
    1%: Chemics can help - but only for e short time! Most of the time it is a physical damage - which can't be repaired.

    Don't know what "avri" means ... (sorry; German bloke)
    If it is an old bass - ALLWAYS save the old pot to prove that the bass is old. CTS pots have building dates on which can be important - or increae the value of an instrument ...
  4. GtenderG


    Feb 29, 2008
    Sounds to me like a solder connection has failed. Pop the pickguard off and take a look.
  5. Growlmonkee


    Jan 30, 2013
    Florida, U.S.
    A CTS 250k brass sleeve, brass shaft audio taper pot is a good replacement for what the bass came with, the pot itself does not cost a lot, neither does a new .047 μf capacitor, (tone cap), though the old cap should come off, and go back on with no problem, if the solder joints are good, but, you need a new pot.

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