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No tone pot?

Discussion in 'Pickups & Electronics [BG]' started by fourstringbliss, Nov 13, 2012.

  1. fourstringbliss

    fourstringbliss Supporting Member

    Oct 5, 2003
    Puyallup, WA
    I never mess with the tone pot on my Jazz bass, so I'm wondering what would happen if I take it out. The pot is 500k and the cap is 0.047uf, but I always leave it dimed - isn't that like having no tone pot?
  2. iiipopes


    May 4, 2009
    No. There is still some loading going on. If you remove it, it will probably take on a harsh edge to the tone.
  3. elgecko


    Apr 30, 2007
    Anasleim, CA
  4. gunlak


    Nov 24, 2009
    did that to my P/J, loved it.

  5. With 500k, it tends not to be noticeable with the average pickup impedance. If that becomes an issue, however, you just replace the pot with a fixed resistor.
  6. iiipopes


    May 4, 2009
    Well, yes, at 500k it's already brighter, so if the OP likes the tone, then removing it altogether will be a marginal step towards bright/harsh instead of the universe of change if the tone control was the stock 250kohm pot.

    Another alternative to keep the tone control if necessary is to go to a 1 meg linear taper pot first before tossing out the tone control completely.
  7. fourstringbliss

    fourstringbliss Supporting Member

    Oct 5, 2003
    Puyallup, WA
    What I'm debating about it whether to install a push/pull pot for parallel/series wiring or to ditch the tone control (which I never use) and replace it with an on/on parallel/series switch. I just don't know whether I want to have to pull a knob to switch the mode.
  8. No tone pots in my Jazz Basses.
  9. iiipopes


    May 4, 2009
    I have tinkered with guitar electronics for over 35 years. I have found that a good push-pull control is easy to operate, doesn't affect the cosmetics of the instrument, and keeps the versatility. Plus, it is a positive control, and you can "grab and go" and not be distracted with a little flip switch trying to find it or make sure it's in the right position in the middle of a song or set.

    I would suggest that changing out the tone control with a push-pull pot/switch with the usual DPDT 6 lugs is the best way to get what you're after: retaining the tone control while increasing the versatility of the bass with the series/parallel.

    Here's a schematic, which, when engaged sends the series position to the neck volume knob for easy reach. It is drawn separately from the tone control, but the wiring is the same with a push-pull as part of the tone control pot as it is with a separate switch:


    And here's a kit ready to go:

  10. fourstringbliss

    fourstringbliss Supporting Member

    Oct 5, 2003
    Puyallup, WA
    Thanks! I'll stick with this way of doing it.
  11. iiipopes


    May 4, 2009
    You're welcome!
  12. Angel LaHash

    Angel LaHash

    Aug 24, 2012
    If you dont touch the TONE CONTROL at all .. you could take it out and replace it
    Measure the Resistance from the TOne Pot to the the Leg with CAP/Earth on it and just put in a resistor of that value with the cap
    its just a filter.. Tone is always doing some thing

    Dam Line6Man got there before me

    dam im too late to say any thing .. I got lots fo Push Pull im using on strats at the moment to flip the coils
    editing the P-bass to change the Tone controls
    also would like to add a Jazz PickUP on it as well
    so will need to have a selector OMG this is getting complex with the space i got
    Ill draw the plan out first then take over teh world