>
>
> If you do have to wind them manually, remember that for every turn you
> make
> on the bobbin, the stock wire twists. And this makes it much easier to
> break. Try to reverse this twist every few tens of turns and I suspect it
> wouldnt break as aeily.


Hard to explain in text, but it dosen't twist if you do it right.
If you're rotating the core, and pulling the wire off a spool, it's fine.
If you have the core still and are running the wire around it, then the wire
twists.
Think of it this way, a reel-to-reel tape never twists.
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