Coil tapping a p90 - what do I need and how do I do it?

[Philly Q]

Tom, send me the pickup and I'll figure out how to wire it.

I can't be held responsible if it gets "lost in the post" on the way back to you though....

[WezV]

sorry for all the duff advice and confusion

i  would say to ask tim which wires are which and use the SD diagram... if you have a multi meter you dont need to ask because you can use it to figure  out  which wires go where

[Kilby]

I'm even more confused now :lol: I might just tape off the green and not bother at this rate, I have no idea whats going where at the minute :(

You could ask Tim (or his elves), I also remember that there was a thread like this and I believe it was in regard to Sambos Melody Maker

[MrBump]

OK, maybe this is a daft question, but what's a "Pig90"? 

[_tom_]

I tried to find sams thread because I remembered it but he got it fixed by a tech so there wasnt a definitive answer if I remember right. Wez the SD diagram confuses me even more :lol: The wiring looks nothing like I have in my LP and I dont even have a tone connected to the bridge pickup at the minute.

MrBump, a pig 90 is a powerful p90 :) Tim said its got about the same output as a Sinner but more bottom end chunk.

[Philly Q]

Wez the SD diagram confuses me even more :lol: The wiring looks nothing like I have in my LP and I dont even have a tone connected to the bridge pickup at the minute.

You shouldn't need to worry about the diagram looking like your LP wiring or not, all you're doing is taking out a volume pot and replacing it with another volume pot - with a switch stuck on the top of it.

The tone controls (or lack thereof), second volume control, switch and jack all stay exactly as they are!

[_tom_]

hmm right I think I see what to do now then, just need the colour codes. The wire that goes from the middle lug on the right of the push/pull to the selector switch, do I just ignore that or does it go to tag 1 of the volume pot instead?

[MrBump]

MrBump, a pig 90 is a powerful p90 :) Tim said its got about the same output as a Sinner but more bottom end chunk.

Cool... thought that it might be that, a custom order thingy.

[Philly Q]

The wire that goes from the middle lug on the right of the push/pull to the selector switch, do I just ignore that or does it go to tag 1 of the volume pot instead?

To tag 1 of the volume pot - you're almost there!

[WezV]

i could knock you up a quick diagram  if you let me know what the rest of the components are - what pickups, what pots and which style of switch?

[_tom_]

They're all 500k pots, normal 3 way toggle switch and standard LP wiring as far as I know.. I have the tone pots disconnected at the minute but I might want to reconnect the bridge one - I've never used a bridge p90 so I dont know what I'm expecting. I made my own "diagram" based on what I can see in the SD one and what wiring there is to the volume pot in the guitar at the minute..



I guess the red and green could be swapped if its the wrong way round?

On the tapped p90s does the wire braid still need grounding as well?

[Philly Q]

Looks correct to me!  Yes, you could swap red and green if you find it's tapped with the switch down and full output with the switch up.

On the tapped p90s does the wire braid still need grounding as well?

I've never seen the cable on a tapped P-90.  Is it a metal braid with the 3 coloured wires inside, or is it a plastic sleeve (like a 4-conductor cable) with 3 coloured wires plus a bare wire?

Either way, the braid (or the bare wire) should also go to ground.

[_tom_]

I just assumed it was braided for some reason actually :lol: I guess it wouldnt be now I think about it as the braided ones are only 1 core from what I've seen..

[WezV]

that looks good to me!

[_tom_]

Good :) btw, how do you solder stuff to the back of the pot for ground? Theres a big switch on top of it on a push/pull :lol: Just attach it to the side instead or what?