They sent me one that they had already refurbed. I sent mine in to them (I believe it is a requirement) and someone else will wind up with that one. The person who does the rebuilds said sometimes they cant rebuild them.

I believe they will also buy cores you may have.

So I dont still have the old one. If I did I would take it appart to see if I could figure out what failed and if I could figure out how to fix it - Or involve one of my EE friends (my background is ME).

BTW Jim thanks for the warning on the spring. Thats why I was ready with a loop of string to keep it in its place. Tied it off with minimal tension to keep its hidden end attached. Worked like a charm.

Paul