Checking Wiring Diagram for P90/HB, Blower, Blender

[jondiaz1985]

I have found so much useful information on here, I figured it was time I contributed something. I recently picked up a Squire Bullet Mustang HH and decided to mod it since the pots were borderline useless and the sound was just meh. BUT, the feel of it is pretty amazing ESPECIALLY for being under $200. I grabbed some Railhammer pickups and a MN pot and I have a push/pull and and an audio pot on hand. Here's what I'm looking to do and hoping I can get confirmation on my wiring before I pull everything apart. I'm still moderately new at doing the actual work on this stuff.



Neck Pickup - Railhammer Nuevo 90 (Humbucker sized P90)

Bridge Pickup - Railhammer Anvil Humbucker

Push/pull - Down = Master Volume/Up = Bridge Pickup Blower

Blender Pot instead of a selector switch, clockwise more bridge, counterclockwise more neck

Gradual coil tap for bridge pickup



Here's my diagram. Any help would be much appreciated. I did all the colors by the Railhammer color guide and included their guide in the bottom left. Sorry it's messy, its all done by hand in Illustrator.

[unreg]

Nov 9, 2023 12:53:24 GMT -5 jondiaz1985 said:

Neck Pickup - Railhammer Nuevo 90 (Humbucker sized P90)

hi jondiaz1985!

Welcome to GN2! Surely, a more detailed response for you will appear; I just have one tiny point:

My guitar is also a HH guitar with a p90-ish humbucker. But, mine is in the Bridge position and it’s a different kind. It’s a DiMarzio Bluesbucker.

Now, from my personal experience, that Bluesbucker, or p90, made my guitar sound WAY too shrill; it played with TOO much treble. To remove the shrillness, I eventually installed a 250K audio Tone pot. My original tone pot, while at 500K, created lots of treble when using the p90-single-coil-type-humbucker. Commonly 500K pots are used with humbuckers; 250K pots for single coils; the lower resistance makes the sound “duller” (my guitar sounds beautiful to me now ) or not as shrill.


I’m guessing your guitar lacks a tone pot in that diagram. I hope the Railhammer Nuevo p90 plays better with 500K pots… if that’s what you have.

Though, shrillness increases toward the bridge, so your neck p90 may be already perfectly positioned; maybe all my talk just now was pointless! :0

[newey]

jondiaz1985-

Sorry, but it's back to the drawing board.

Your bridge pickup's "hot" line, the black wire, connects to the push/pull for the "blower", and then connects down to the blender. The blender then connects to the lower right-hand lug of the push/pull, which is connected to . . .nothing. Similarly, the black wire isn't being switched by the push/pull, so there's no blower- but there's no output period, because the whole black wire "chain" dead ends at the push/pull. The master volume control is likewise not connected to anything; the wiper isn't connected to the output.

For the blower, you need to wire the black wire from the Br pickup to the center lug of the push/pull; the top lug then goes to the jack tip for the blower, while the lower lug goes to the blender. The output from the blender will then go to the CW lug of the volume pot, and the wiper goes to the jack tip.

You would only be using one-half of the push/pull with the above scheme. However, we then get into what exactly you mean by "blower". As I have described it, the Br pickup would go straight to output, bypassing the resistances of the pots, but the neck pickup would still be connected via the blender, so that, unless the blender were turned to the bridge side, you'd have some level of neck in the mix. You may want this; some folks mean "blower" to just bypass the pots, not necessarily the other pickups. However, the second half of the push/pull can be used to disconnect the blender when pulled, so that pulling up would always give you the "full force" of the bridge pickup alone, for a quick-change "lead setting". This is the more usual use of the term "blower". Again, either can be done here, it's your choice.

I am also not sure whether you have wired the pots left-handed or not; that will depend on whether you were depicting this from the underside or as if looking from top down.

There may be other issues as well, those were the first things I saw at a glance.