Humming in my humbucker??

[drake]

So a humbucker set that I’ve made has humming, obviously it shouldn’t. And no this isnt EMI as my other humbuckers arent experiencing the same thing when installed in the same guitar. Ive rewound this pickup again and the problem persists, what gives?? Middle position is fine, 0 hum. Also another peculiar thing going on is that the pickup sounds split when the red and white (south finish and north finish) ARENT grounded, which is odd because grounding those wires is typically what splits a humbucker. Also im using SD color codes if that helps.

Resistance is where it should for both bobbins and when in series, inductance is good as well. polarity checks out (south for screw and north for slug bobbins). Grounding to the plate passes continuity test, I’m really at a lost for whats going on.

What’s weirder is all this is happening after my new winding machine… i can’t think of a single reason why. Anyone have any ideas that they can throw my way?

[drake]

and to add: heres my winding procedure

bobbins on winder
winding as normal
using 28 awg conductor wire and soldering to respective start and finish
wiring that up to my main 28 gauge 4 conductor wir
soldering ground bare wire to baseplate
magnets with south facing screws and north facing slugs
assemble
wax pot
noodle

theres nothing going wrong here to warrant the issue is there?

[newey]

drake-

Hello and Welcome to G-Nutz2!

Sorry, I don't have a clue as to the problem here, but hopefully someone will be along with an idea.

Middle position is fine, 0 hum.

So, when neck and bridge are both on, there's no hum but if either pickup is on by itself, it hums? The same hum on boht neck and bridge?

Nothing in your description of your procedure sounds questionable. When you say:

the pickup sounds split when the red and white (south finish and north finish) ARENT grounded,

Have you verified that both coils are, in fact, active (screwdriver tap test)?

[drake]

Yea, both bobbins are active but sound split, and when the humbucker is split (grounding the red and white to the pot) then it sounds full??? Here's a demo
 

[ecmalmo]

The "split" sound in series might be that it's out of phase internally, so when you ground one coil it resolves the phase issue since it's just one coil left.

Did you wind both coils with the same direction on the winder? They should both be clockwise or both counterclockwise.
Did you put the top or the bottom of the bobbin towards/away from the winders mounting plate in the same way for both coils? 
If the above points are OK, double check if the hookup wires have gotten mixed up somewhere (start vs finish).
If you're doing 4 conductor, only the foil screen should be grounded to the baseplate.

[drake]

Apr 27, 2022 15:18:14 GMT -5 ecmalmo said:

The "split" sound in series might be that it's out of phase internally, so when you ground one coil it resolves the phase issue since it's just one coil left.

Did you wind both coils with the same direction on the winder? They should both be clockwise or both counterclockwise.
Did you put the top or the bottom of the bobbin towards/away from the winders mounting plate in the same way for both coils? 
If the above points are OK, double check if the hookup wires have gotten mixed up somewhere (start vs finish).
If you're doing 4 conductor, only the foil screen should be grounded to the baseplate.

Hmm I wound one coil CW and the other CCW in order to make some space in the middle for the wires to be stuffed in. I had not done this before and just started doing it on higher wind coils. Is this the issue then?? Because I thought that wind direction didnt matter much as i assumed that the starts and ends of the coil are what matters rather than the physical direction that they were wound

[ecmalmo]

Apr 28, 2022 13:30:45 GMT -5 drake said:

Apr 27, 2022 15:18:14 GMT -5 ecmalmo said:

The "split" sound in series might be that it's out of phase internally, so when you ground one coil it resolves the phase issue since it's just one coil left.

Did you wind both coils with the same direction on the winder? They should both be clockwise or both counterclockwise.
Did you put the top or the bottom of the bobbin towards/away from the winders mounting plate in the same way for both coils? 
If the above points are OK, double check if the hookup wires have gotten mixed up somewhere (start vs finish).
If you're doing 4 conductor, only the foil screen should be grounded to the baseplate.

Hmm I wound one coil CW and the other CCW in order to make some space in the middle for the wires to be stuffed in. I had not done this before and just started doing it on higher wind coils. Is this the issue then?? Because I thought that wind direction didnt matter much as i assumed that the starts and ends of the coil are what matters rather than the physical direction that they were wound

There you have it then. If you wind in different directions and then tie together the finishes it will be out of phase.
I don’t know what you are referring to with making space for the wires, I usually always put the wires in the same places, along the sides of the bobbins under the protective tape and then coming out at the short end to be soldered with the main hookup wire. Using Awg 30 silicon insulated wire really made my life easier 😊

Anyway, the fix is easy, instead of joining finish-finish for series, just join finish-start and you should be fine.