[Roger Cole]

I've only ever rewound an antenna coil and an oscillator coil, but in those cases the wire gauge and exact number of turns wasn't all that critical. I didn't have the exact wire in either case, but I got it as close as I could and made the number of turns as close as I could. The trimmer caps for the antenna and oscillator circuits more than compensated for the error I introduced. My resistances were a fair bit off but it worked fine. (presumably the inductances were much closer)

In my case, it was useless to count turns of wire as I unwrapped the coil because the wire had degraded so much that it came off in pieces. I had read on the forum about counting turns by dragging a pin across the windings, which worked just fine.

I'm sure there are more experienced coil repair people than me, and it might help if you had a pic of the coil you are working on.

Roger