Need help wiring a series/parallel switch

Discussion in 'Pickups & Electronics [BG]' started by Drepo, Aug 5, 2021.


  1. Drepo

    Drepo

    Aug 5, 2021
    So I've been looking into how to use a mustang 3 way slide switch as a selector switch for two jazz bass pickups (having neck, neck+bridge, bridge) combined with a jazzmaster 2 way switch as a series/parallel selector, given the series mode only works when the middle position (neck+bridge) is engaged, but I can't quite figure it out (have 0 experience wiring). Any help is well appreciated!
    Edit: the mustang switch is an 8 pin switch
     
    Last edited: Aug 5, 2021
  2. James Collins

    James Collins Guest

    Mar 25, 2017
    Does your mustang switch have 8 lugs?

    Should be pretty simple if so.
     
    Drepo likes this.
  3. two fingers

    two fingers Opinionated blowhard. But not mad about it. Gold Supporting Member

    Feb 7, 2005
    Eastern NC USA
    @rojo412 is a wiring wizard. Perhaps he can shed some light?
     
  4. Drepo

    Drepo

    Aug 5, 2021
    Yes, it does! Still I'm new into wiring and I don't know how to properly route it
     
  5. James Collins

    James Collins Guest

    Mar 25, 2017
    .......To vol - 1 2
    .........PU 1 - 3 4 - To switch
    To switch - 5 6 - PU 2
    ...................7 8 - To vol

    Sorry I'm not anywhere to draw. To switch means to your parallel and series switch. To volume could be to your volume pot or output. When the switch is on the side close to lug 8, it will have Pu2 to output. In the middle, both will go to your series and parallel switch. In the position close to lug 1, put will go to output.
     
  6. Drepo

    Drepo

    Aug 5, 2021
    Thank you so much! But I don't really know how to wire the s/parallel switch either, I've been looking at this image for it https://music-electronics-forum.com/filedata/fetch?id=938220&d=1628031296 and came up with this(the ugly draw), wich is based on another mustang switch as a selector that I found:

    The problem with this design, I think, is that if you were to choose the first pickup while on series mode (both switches up), no sound would come out of the bass. Ideally, I was thinking of the s/parallel switch as a mod that only works when both pickups are on.
    Sorry for not understanding your squematics :sorry:
     

    Attached Files:

  7. James Collins

    James Collins Guest

    Mar 25, 2017
    This might work better. I think if you go into the parallel and series switch first you lose ability to pickup select.

    IMG_20210806_000757~2.jpg
     
  8. James Collins

    James Collins Guest

    Mar 25, 2017
    I'm pretty sure that makes it so in position 3 of the pickup selector you get pickup 2 only and ground is grounded regardless of the parallel/series switch.
     
  9. Drepo

    Drepo

    Aug 5, 2021
    This is awesome! I spent yesterday's entire afternoon trying to solve how to get the series switch to only work in the middle position but I was using the selector after the s/p switch :):):).
    It should give this result right?? I mean, there are no dead signals, series mode when it shouldn't,... this is what I've checked (the jpg image)
     

    Attached Files:

  10. James Collins

    James Collins Guest

    Mar 25, 2017
    I believe so. I am no electrician, just a hobbyist, but it looks like it should do what you want to me.
     
  11. James Collins

    James Collins Guest

    Mar 25, 2017
    If you ever run into a situation where you can't do what you want, most of the time having an extra pole makes it easier. So like a double throw triple pole switch instead of a double pole. It makes it so you can do an extra thing.
     
  12. Drepo

    Drepo

    Aug 5, 2021
    Follow this thread at guitarnuts2, it appears to be an error in the scheme when engaging parallel and PU 2.
    I though it would be interesting to share it here too since I've learned from it now to ever connect a ground signal to the hot output ([!]not the same as when wiring series).
     
  13. James Collins

    James Collins Guest

    Mar 25, 2017
    Yeah I see that now. You could either treat that as a kill switch condition, or you need a different wiring setup. The only way my mind can see it requires a different toggle switch.
     
  14. James Collins

    James Collins Guest

    Mar 25, 2017

Share This Page