[KCMike]

 Hard sometimes to believe how much wire is on the small bobbin. Project for tomorrow.
[Image: http://i1336.photobucket.com/albums/o654...iw9pab.jpg]

[Jim Koehler]

Weigh the wire and bobbin together, then weigh the wire alone. Spool the new wire on the bobbin until it reaches the weight of the combined items. Usually you're with 1 or 2% of the needed resistance at this point provided you're using the same guage wire.

[KCMike]

Thanks Jim for the advice. I will give that a try.