P + MM wiring diagram

eaglemachine

eaglemachine

Oct 11, 2007
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Atlanta
#1
Hi All-
I am building a bass (Slow build Super PJ) with a P pickup and a MM pickup and wanted to wire the bass like this:

  • P pickup - series (as is normal)
  • MM - with a series/parallel push/pull knob and a north/south/both coil 3 way mini switch.
  • I wanted to do a blend knob as the push/pull and a stacked tone volume knob
  • Alternatively, could stack the blend and tone and do the volume as a push pull or do I even need a volume control?

But cannot find a wiring diagram for it. Does anyone have a wiring diagram for this configuration by chance?

Pickups are: SPB-3 and SMB4D
Thanks!
 
Last edited:
#3
I think your biggest problem is going to be finding a push/pull blend knob with center detent. I'm not saying they don't exist, but I have never seen one.

My suggestion would be a stacked volume/tone and blend knob. Then skip the north, both, south option in favor of a series,split,parallel switch.
 
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#4
Hopkins said:
I think your biggest problem is going to be finding a push/pull blend knob with center detent. I'm not saying they don't exist, but I have never seen one.

My suggestion would be a stacked volume/tone and blend knob. Then skip the north, both, south option in favor of a series,split,parallel switch.
Click to expand...

Thanks @Hopkins! That is a great idea. I could just select one coil on the MM for the split correct (say just the south coil)?

Do you happen to know how to wire it or know where I can get a diagram for that setup?
 
#5
Wire it like this, don't worry about the pickups not being the correct shape, or the volume and tones being separate pots. A stacked pot functions as two individual pots anyway, so the diagram is correct for your application

upload_2016-11-15_9-20-47.png
 
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#7
#8
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#9
Hopkins said:
Wire it like this, don't worry about the pickups not being the correct shape, or the volume and tones being separate pots. A stacked pot functions as two individual pots anyway, so the diagram is correct for your application
Click to expand...

I have a Schecter Diamond-P Plus that stopped working a few weeks ago. The preamp failed and I was going to replace it, but decided to poke around for a solution to make it passive and a little less clunky, not being a fan of either an active point of failure or the rotary pickup switch. I followed this design, using a separate tone pot so that all four holes on the pickguard would be used, and it worked beautifully. Thank you very much!
 
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#10
Hopkins said:
Wire it like this, don't worry about the pickups not being the correct shape, or the volume and tones being separate pots. A stacked pot functions as two individual pots anyway, so the diagram is correct for your application

View attachment 989007
Click to expand...
Thanks for this. I’m basically doing this, but I think the P pickup I’m using has series/parallel wiring, so I may add a switch for the P pickup.
 
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