[Mikeym53]

Thanks, Chas for the explanation. I had read in the Philco repair bench about the celluloid liner, and how it can break down from moisture and over time attack the wire. Your theory about the colloidion sealant makes sense. This is great tek. Thanks. When you come across this wire in a Philco coil, the main thing is identifying it by the cotton covering that has corroded and looks green. Since the wire has lost it's integrity to hold together. It is important to count the turns by using a fine point
tool that you can drag across the winding and count each turn. If you try to unwind it to count the turns, it will fall apart and you will be lost.
Mike