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3 pickups...?

Discussion in 'Pickups & Electronics [BG]' started by newbold, Oct 5, 2008.


  1. newbold

    newbold

    Sep 21, 2008
    Toronto
    If I have 3 pickups on a bass will master series/parallel wiring become a problem?
     
  2. No - look at a Burns Bison bass.
     
  3. Hi.

    With humbuckers:

    Cheaply, yes it will.

    If You can afford a quality pancake rotary switch (and fit it into a bass), no it won't.

    The wiring will be a nightmare though in both cases, but proper use of shielded cables and cavities, it can be done.

    If You do it with individual DPDTs, it's still going to be rather hard, doable, but hard.

    With a rotary switch You can later discard the combinations that doesn't work. And there will be plenty of those as well.


    On the other hand, if the pickups in question are just single coils, copy the 5 (or 7) position Stratocaster schematic.

    Regards
    Sam
     
  4. gm jack

    gm jack

    Oct 5, 2008
    Reading UK
    The Urge II has two jazz pickups and a split coil. Take a look at how they are combined for ideas.
     
  5. ryco

    ryco

    Apr 24, 2005
    97465
    Here's mine:

    fenderfront.

    I had Mark Arnquist mod this P in '80. I don't know how it's wired inside - I'm electronlcs challenged. :atoz:
    I can tell you each pup has a vol knob with a tone ring on the outside.
    I added the kill switch later.
     
  6. Cernael

    Cernael

    Jun 28, 2008
    Well...define "problem".

    With two pickups, you just have two options here - either the two are in series, or in parallel.

    With three pickups, you have many more:
    All three in series.
    All three in parallel.
    The first two in series, and the sum of those in parallel with the last one.
    The first two in parallel, and the sum of those in series with the last one.
    The first and last in series, and the sum of those in parallel with the middle one.
    The first and last in parallel, and the sum of those in series with the middle one.
    The last two in series, and the sum of those in parallel with the first one.
    The last two in parallel, and the sum of those in series with the first one.

    I may have missed some in that list, I dunno.

    If you just want the first two options (all three in series/all three in parallel), I'd guess that could be done with a single 4pdt switch.
     
  7. newbold

    newbold

    Sep 21, 2008
    Toronto
    What I was thinking is this:

    3 split coils with a series/parallel switch on each pickup, volume pushpot.

    Master tone with rotary selector to switch between:

    neck pickup free
    sweet spot pickup free
    bridge pickup free
    all together

    with a switch to select whether the said selection will be series or parallel...

    ...but the above options look fantastic as well.

    Will a rotary knob work with a separate switch??

    My idea was originally to just have 2 pickups a la jazz bass, but to have a jazz/thumb fusion of tone could be a great way to bridge the jazz and sweet spot tones.

    I've got lots of time before I get this bass rolling and I want to anticipate stumbling points.
     
  8. RyreInc

    RyreInc

    May 11, 2006
    Kalamazoo, MI
    I have a feeling many of those combos will sound nearly identical. IME, the greatest sonic change comes from pups separated by the greatest distance, i.e. bridge and neck.

    With three pups, a phase switch on the bridge pup becomes a viable option, especially if you have individual pup volume controls. You may consider that instead...
     
  9. newbold

    newbold

    Sep 21, 2008
    Toronto
    "If you just want the first two options (all three in series/all three in parallel), I'd guess that could be done with a single 4pdt switch."

    would that be big difference in volume?
     
  10. Hi.

    IME yes, and that's the real problem with multiple pickup series/parallel systems. Not the actual wiring, that just takes time and patience.

    By using rotary switch(es) theres a possibility to attenuate the series slections to level the output.

    If facing that kind of a task I'd probably try to convince the customer to try the three push/pull (S/P) volume pots combined with the 5 position Strat. switch + tone and the master volume. That'd be easiest and cheapest solution IMHO.

    Regards
    Sam
     
  11. newbold

    newbold

    Sep 21, 2008
    Toronto
    So what else could possibly be done with 3 pickups?

    What the heck is a coil tap anyway?
     
  12. One of my basses has three single coil PUs in series, with both an on/off switch and a phase switch for each.
     
  13. I'd like to hear some sound clips of that bad boy!
     
  14. fenderx55

    fenderx55

    Jan 15, 2005
    NYC/Queens
    +1 That thing looks killer!
     
  15. newbold

    newbold

    Sep 21, 2008
    Toronto
    Change of heart...I want it to be simpler but broader.

    It's gonna be a thumb/per

    DarkStar Pickup in neck position

    (Lindy Fralin?) Split J 5 set in bridge/sweet spot area

    -DS - Volume/Tone Stacked knob
    -Fralin mid - volume/S/P pushpot
    -Fralin bridge - Volume/S/P Pushpot
    -Master tone/selector switch stacked knob
    Fralins Series summed in Series with the DarkStar, series
    Fralins Parallel summed in Series with the DarkStar, parallel
    Fralins Series summed in Parallel with the DarkStar, series
    Fralins Parallel summed in parallel with the DarkStar, parallel
    -Phase

    If it's a 4 way switch

    if it's a 5 or 6 way switch it would also be a fralins/darkstar pickup cut to quickly switch between electronics and have the both/either/or options

    I want the split J's to be angled like a Thumb and the Darkstar to be under a strings cover.
     
  16. newbold

    newbold

    Sep 21, 2008
    Toronto
    I think I'll probably opt for a set of DiMarzios instead of the Lindy Fralins.

    Still no DarkStar 5 string pickups being produced. I have lots of time to wait either way.
     

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