Wiring Quandry,, Help Needed ,, please...

[zozoe]

Greetings,,, It's late, & my head hurts from knocking out this guitar for my daughter before the weekend. It's a Dean Hardtail your typical 2 vol & 2 tones ones
The Bridge will be a 59/Hybrid connected to a Triple-Shot, whereas the neck p/u, i want it to be connected to a push/pull pot for knocling out one coil or the other.
Now, where will this p/p go, on the neck"s volume or on the tone, & going by standard Duncan wiring colors, what goes where? A schematic, even a detailed scribble on paper would suffice, or a link to a schematic would be great

 

[Mincer]

You can put the push/pull on either the volume or tone- whatever is more comfortable. I'd look at this diagram for the actual splitting function.

 

[ThreeChordWonder]

The bridge, via a triple shot, gets wired white = hot, black = ground, just like a regular single coil. The third (shield) wire always goes directly to ground, never via a switch.

The neck humbucker, assuming Seymour Duncan colors, gets wired thus:

Black = hot, goes to the main switch or its volume pot then to the switch.
Green = ground.
Bare = shield, always directly to ground, never via a switch.
Red and white do the coil splitting.

Red and white both get soldered to the same middle or common lug on the push-pull, and one other lug on the same half of the push-pull goes to ground.

The norm is to ground the lug that connects to the common in the pull position. That means you get full humbucker pushed in, coil split pulled out.

It doesn't really matter which pot you replace with a push-pull.

One other tip.

For independent volumes, wire the pickup hots to the middle lugs on the volume pots, then, with the pot shaft side down and with the lugs pointing towards you, wire the left lug to the switch and its tone pot. Ground the right lug. Ground each volume pot to its tone pot, but do NOT ground each volume pot to the other one. Ground both tone pots to each other and to the output jack sleeve. Don't ask me how this works because I have no idea, but it's a common mod on SGs and LPS. You may need treble bleeds as well though.

 

[zozoe]

MINCER,,, thnx,, but how do I incorporate this in a 2 p/u guitar,, both SD buckers....please be specific...
thnx again

 

[ThreeChordWonder]

The two coils in a humbucker are connected by two "middle" wires, which, on SD pickups are the red and white ones. The black is the hot, the green the ground. The wiring sequence is ground >> green >> south coil >> red >> white >> North coil >> hot. If you're not going to coil split, the red and white wires should be soldered together, the bare ends insulated and left hanging.

When you coil split, what you're actually doing is grounding the south coil at both ends (by grounding the red) and providing a new ground path via the white for the north coil.

This is where the push-pull comes in.

A standard DPDT push-pull has two sets of three contacts.

Each set has a center or common contact and two others. One or other connects to the common in push or pull, but never both.

So what you do is connect the red and white to one, the same, common contact on one half of the push-pull and ground one of the other contacts on the same half of the push-pull..

The push-pull function is entirely separate from the pot function.

If you want to coil split two humbuckers, you can use two push pulls to enable individual coil splitting. Alternatively, you can wire each red and white pair to different common contacts, not the same contact though, on one push-pull unit. Each set of three contacts must have one, and only one, contact grounded. Now the push pull will coil split both humbuckers at the same time.

You said you were using a Triple Shot on one humbucker, however. The mini switches in the Triple Shot take care of the coil splitting / selection / series or parallel options on that humbucker instead, so you only need worry about the one without the Triple Shot. Just to confuse, the output wires from the Triple Shot follow the normal single coil convention, white = hot, black = ground, however.

 

[zozoe]

Yeah, I got this, I think,, The Bridge is only it's way, ordering a 500k pp now, & the neck HB is in place, waiting to receive... in the recommended schematic, which coil will be activated when I split, north w/poles, or south slug? Thnx again all~

 

[ThreeChordWonder]

If you split the normal way the north (slug) coil will be active. It's possible to split so the south (screw) coil remains active but the wiring is a bit more complicated.

 

[zozoe]

ThreeChordWonder,,,, on a neck Duncan, isn't the South coil the Slug & the north w/the screws? Don't forget, the bridge is getting the Triple-Shot, & the neck is getting the push/pull....?

 

[zozoe]

MINCER, so the destination of the 2 wires post pp, make the usual journey? Rhnx

 

[Mincer]

MINCER, so the destination of the 2 wires post pp, make the usual journey? Rhnx

I am not exactly sure what you mean, but the goal is you are wiring each push pull to ground, so when engaged, it is shorting out one coil.

 

[ThreeChordWonder]

ThreeChordWonder,,,, on a neck Duncan, isn't the South coil the Slug & the north w/the screws? Don't forget, the bridge is getting the Triple-Shot, & the neck is getting the push/pull....?

Not as far as I know.

Although for what I think are purely visual reasons the slug and screw coils swap positions, the south coil ALWAYS has the screws (S for south, S for screws).

I've wired my SG with new pickups twice, and the same HH Strat twice, no, three times over with different pickups, and not had a phase problem as a result.

On P-Rails, the P90 coil always has the black and white wires, however. It says so somewhere on SD"s own website.

Triple shot rings' printed circuit boards have tabs labeled R, W, G and B. You solder the red wire to R, the white wire to W and so on.

 

[ThreeChordWonder]

More reading here:

https://www.seymourduncan.com/blog/latest-updates/guitar-wiring-explored-humbucker-internals

 

[GuitarDoc]

TCW is correct about the black and white coil being the slug coil. South is screw coil...green and red.