If you are careful with the winding and avoid the waste of space from bringing out the centre turn over the coil and squeeze the coils a bit you may get the same turns.
If you are up in magnet grade you may be better aiming for a few turns less so anything over 120 turns should do.
I use bits of 1/4" wide by .010 thick copper tape to bring the inside leads out and that would give you an extra layer of wire and gain you several turns.
Flux
Thanks Flux,
That appears to be a great way of getting the wire out of the 'center' of the coil.
Ron Adventure is just bad planning." -- Roald Amundsen [ Parent ]