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Volume Pot with Rotary on/off

Discussion in 'Pickups & Electronics [BG]' started by bass_case, Jan 20, 2015.


  1. Jan 20, 2015 #1
    bass_case

    bass_case Maintain low tones. Supporting Member

    Oct 23, 2013
    Miami, FL
    I recently bought a Squier VM Jaguar V, this is the one with the PJ configuration with an active bass boost. I was planning to put a push/pull pot on it so I can electrically bypass the boost, but was thinking a pot with a rotary switch, like on an old car radio, makes more sense.

    Can anyone provide a source for these? I haven't opened the bass up yet and don't know the resistance for the existing pot.

    Also, I haven't been able to locate a wiring diagram for this bass yet, so a link would be appreciated.
     
  5. Jan 20, 2015 #2
    Crater

    Crater

    Oct 12, 2011
    Dallas, TX area
    Sorry, those won't work...rotary on/off switches are single pole, single throw, they can turn power on and off, but they won't work for a preamp bypass, you need a double pole, double throw (DPDT) switch. Push-pull pots have DPDT switches.
     
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  9. Jan 20, 2015 #3
    walterw

    walterw Supportive Fender Commercial User

    Feb 20, 2009
    alpha-music.com
    besides, you then wouldn't be able to bypass the preamp unless you had this knob (whatever it was doing) all the way down, what good is that?
     
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  13. Jan 20, 2015 #4
    bass_case

    bass_case Maintain low tones. Supporting Member

    Oct 23, 2013
    Miami, FL
    Well, that's a drag. It just seemed intuitive to me, since you turn the pot clockwise to increase the amount of boost, counter-clockwise to decrease, with the final tactile click to indicate bypass.

    Will probably just add a toggle, a push pull seems weird for this.
     
  18. Jan 21, 2015 #5
    JustForSport

    JustForSport

    Nov 17, 2011
    The 'off' to gradual boost idea would add the boost circuit to the passive circuit.
    A bypass is an 'either/or' configuration.
    The signal has to either follow the passive circuit OR the active circuit.
     
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  22. Jan 21, 2015 #6
    bass_case

    bass_case Maintain low tones. Supporting Member

    Oct 23, 2013
    Miami, FL
    Thanks for the responses. Guess I'll use a conventional DPDT for this... although I guess if one were truly obsessed with the concept, that single pole switch could be used to power up a relay switch do the active
    /passive thing.

    No, I ain't that crazy.
     
  26. Jan 21, 2015 #7
    walterw

    walterw Supportive Fender Commercial User

    Feb 20, 2009
    alpha-music.com
    Oh OK; that makes sense conceptually, say if the knob were a boost-only bass control as opposed to something where the flat "starting point" was in the center of the turn.
     
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