Is this right? (SD color code)

[jeremyo83]

From the Seymour Duncan website...

All Seymour Duncan humbuckers with four-conductor hookup wires incorporate a standard wire color code.
Green = beginning of adjustable coil
Red = finish of adjustable coil
Black = beginning of stud coil
White = finish of stud coil
For standard series humbucking operation on a 4-Conductor wired humbucker the White & Red wires are soldered together and taped; Green is ground and Black is Hot Output. The bare wire is also grounded.

Maybe I'm not reading or understanding this correctly, but it seems to me that green would be -, red would be +, black would be -, and white would be +. So to connect white & red together would be to wire the humbucker in series, out of phase, no? Wouldn't the correct way be to connect red & black, to wire it in series, in phase?

Am I way off here? Please help.

[UnklMickey]

jeremyo83 said:

....Maybe I'm not reading or understanding this correctly...

that is the problem.

you made a reasonable assumption that the finish end of the winding(s) would be +.

in the case of SD, they wind the coils in the same direction, BUT they have opposite polarity magnets.

so in terms of string sensing, one finish is +, the other finish is -.


to confuse matters even further, some mfrs actually wind one coil backward.

for them, both finish ends will be + ..........(or both -, depending on the polarity of the magnets)

that is one reason why a chart that only has start and finish, is basically useless (like the one on SD's site).

you also need to know winding direction (cw, or ccw).

so, given the limited info available to you, it's easy to see where you were led astray.



cheers,

unk

[jeremyo83]

okay, i suppose that makes sense. so, even though it appears to be series out of phase, because the magnet is reversed, it is actually series in phase.

part two then - I have two Seymour Duncan HBs. the neck is a two conductor braid. The bridge, i recently discovered, is actually a 4 conductor HB, so instead of putting a single coil in the mid position, i'm simply going to put a tap on the bridge HB.

can you see anything wrong in theory or practicality with this?
ps. ignore all the writing on this diagram. i didn't update it when I changed the diagram.



thanks,
jeremy