Single P-rail wiring question

bgreen19996

New member
So I plan on having a single p-rail running to a Gibson style 3 way switch leading to 1 volume and 1 tone pot. It seems fairly strait forward to me how to wire it to get with single coil/ p90/ hum bucker( parallel) using just the 3 way toggle. The issue is I want the middle position to be hum bucker( series) and I’m not sure how to achieve this. This is going into a Gibson sg and I would rather not have a blade switch. I’m not very knowledgeable with electronics but I can solder just fine. Thanks so much in advance.
 
I’m afraid you can’t do that with a traditional three way toggle switch but you can with one of the fancier ones that are DPDT

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That said, as a PRails lover, I find the parallel mode more usable that the series but of course YMMV. I could see the series being used as a beefy boosted sound for solos.

Edit: replace the colors above for the Duncan colors obviously :)
 
The switch you need is surprisingly difficult to find. Guitar-centric stores typically don't have it. The "trick", is you need the small body, and the large handle, in order to maintain the traditional SG, (or LP), styling. Do a Google search for either of these two part numbers:

M2024B2B1W01 (on-on-on) https://www.mouser.com/ProductDetail/NKK-Switches/M2024B2B1W01?qs=t8w9rvwJwK814vTSW7RJ6g==&mgh=1
M2023B2B1W01 (on-off-on)

The on-off-on is a bit easier to wire because you don't need to pay quite as close attention to which terminals you use.

On-On-On_Toggle.png
 
I can't edit the above. In both switches, the red & white are both connected to both middle terminals. On the switch on the right, black is connected to both top terminals and green to both lower.
 
If your guitar uses pickup rings, the Triple Shot is really the most elegant solution.
 
I rather like the idea of a 3-way toggle if you know you don't want all 4 sounds in the P-Rails. I think that's the more elegant solution - any switching set up to get all 4 sounds is cumbersome, and I never could remember which combination of the two switches resulted in which sound.

I recommend the center-off style for this. Only one of the two poles needs to be soldered. There are a couple different types of center-on switches, and if you get the wrong one you can end up wiring the switch backwards. Center-off is a bit more foolproof.
 
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