[geunther]

Rich72C10: I looked over mine a while back when I was cleaning mine up. As geezer stated, they are not complicated at all. If the wire varnish is deteriorated it might need replaced (rewound). You can check the wires coming out of the can to see if they are perhaps broken.

If you like, I would offer to try get it back to functional for you. Seems I like tinkering with electronic things.