What gives???

[Ruel]

I just finished rewinding one coil out of an Ibanez V8 HB using #42 wire (Hitachi supplied by Electrowind from Australia). The coil si already "bursting at the seams" and yet I managed only 3.5K DCR, as compared to 7.5K DCR of the good coil. Could it be that the good coil was wound with #43 wire?

I had a pretty good tension with the one I wound, so it cannot be that I wound loosely. Does anybody have any idea why the big difference in DCR readings?

Thanking you in advance.

[corduroyew]

one coil should only read about 3.25. 2 coils together read about 7.5

[madialex]

not sure how long you have been winding

but, I know getting a HB bobbin to 7.5K with 42 wire is hard if not impossible with heavy build wire. I can get a little over 6K with 42 single build on 1 bobbin. Maybe Wolfe or others has done it but my guess is its pretty hard at best.

As far as the reading you got, not sure, maybe too much tension causing a break half way through, hence the 2 or 3K reading, too loose or too much scatter ending up with a full bobbin with very little resistance.. Just dont know without looking at it.

See Dr Dave, he is about the best at figuring those things out or wolfe or jason or a whole bunch of good winders here, someone will help.

[Possum]

mmmmmmm

With 42 winding real tight you can get maybe 5K if its stretched, so 7.5K was probably 43 or 44 guage. If you didn't wind very tight or did a real rapid scatter then you can't get much on. Rapid scatter makes big fat coils and alot of air in the coil, you get less winds on the bobbin. Maybe your bobbin is smaller too? Neck spacing? Wind it again is about all you can do but with 42 you won't get 7.5K. 3.5K is way low if the bobbin is full, so wind it again, sometimes that all you can do. I've had strat bobbins that had some mysterious thing going on with them and every coil I wound on it shorted out no matter what, sometimes if there is some small sharp something, edge, or nick in the plastic it will nick the insulation on every revolution thats near it and will short out all those winds. Alot of cheap plastic bobbins have "fins" from the injection molding left on them and they can strip insulation. Wind it again and see what happens.......

[David Schwab]

Yeah, like Possum said, most high output humbuckers are wound with 43 or 44, or even smaller!

I can't get much more than 5000 turns of 42 on a Gibson size bobbin.