Coil splitting hum canceling?

[Gunman0156]

I have a Epiphone les Paul that I’m putting a AlNiCo pro II in the neck and a phat cat P90 in the bridge. I have searched and searched trying to find if the coil engaged when I split the AlNiCo pro, is the coil with the normal wind/normal polarity or is it the RW/RP coil? Because I am wondering if I can get a hum canceling effect like most of the single coil sets Seymour sells. I don’t plan on using just one coil of the AlNiCo pro constantly, but am curious just to see if that is the case.

 

[Ascension]

I have a Epiphone les Paul that I’m putting a AlNiCo pro II in the neck and a phat cat P90 in the bridge. I have searched and searched trying to find if the coil engaged when I split the AlNiCo pro, is the coil with the normal wind/normal polarity or is it the RW/RP coil? Because I am wondering if I can get a hum canceling effect like most of the single coil sets Seymour sells. I don’t plan on using just one coil of the AlNiCo pro constantly, but am curious just to see if that is the case.

Yes it is the case. Question is which coil on the humbucker will be RW/RP from the P90 to be humbucking. With a normal Duncan single and a humbucker split normally you need to use a standard wind single not a RW/RP and if you run one RW/RP and one standard wind you have to run the RW/RP in the neck not the middle if you split the bucker to the slug coil.

 

[Gunman0156]

Yes it is the case. Question is which coil on the humbucker will be RW/RP from the P90 to be humbucking. With a normal Duncan single and a humbucker split normally you need to use a standard wind single not a RW/RP and if you run one RW/RP and one standard wind you have to run the RW/RP in the neck not the middle if you split the bucker to the slug coil.

On the website, Seymour Duncan says the neck P90 is RW/RP from the bridge. So I believe the bridge is would ‘normal’. As for which coil is RW/RP of the humbucker and which will be engaged is the question I’m trying to figure out

 

[BluesMan335]

I put stronger magnets in my bridge Phat Cats, as the stock A2's didn't have output in that slot.

 

[eclecticsynergy]

On the website, Seymour Duncan says the neck P90 is RW/RP from the bridge. So I believe the bridge is would ‘normal’. As for which coil is RW/RP of the humbucker and which will be engaged is the question I’m trying to figure out

Duncan's regular P90s are North up, I believe. I would expect the Phat Cat bridge to be that way too.
So splitting your A2P normally (to the slug coil, South polarity) should give noise cancelling in middle position.

 

[ThreeChordWonder]

IiRC an email from SD Tech Support I posted up here few weeks ago told me regular SD single coil pickups are "south up" whereas Fenders and maybe others are "north up".

So SD draw their wiring diagrams such that when a humbucker is "split", it does so to the north (black and white wires, slug pole piece) coil.

If indeed SD P90s are wired "north up" you need to coil split to the south (red and green wires, screw pole pieces) coil. That will give you hum canceling in P2 (split bridge plus middle). The wiring is a little more complicated but it's do-able.

Warning given. From here on I'm thinking aloud.

I think this also means to get hum canceling in P4, middle plus neck, the place to put a RWRP pickup is actually in the neck.

Plan B is to put a RWRP P90 in the middle , and coil split to the north humbucker coil, and put a regular "north up" P90 in the neck. That makes the humbucker wiring easier.

 

[ThreeChordWonder]

SD wiring top left

 

[ThreeChordWonder]

Linkey

https://forum.seymourduncan.com/for...up-polarities-coil-splitting-and-rwrp-pickups