Gomer50, the switchbox he has is not the typical type found on most of these in-lines. His is a rare breed. His photos show a different switchbox and an original 3 terminal rectifier. The switchbox is not installed backwards.
Hartleck, the test procedure is not applicable to your switchbox, but should be able to figure out a way to test it. Will try to get back to you tomorrow.
Good news on getting your choke working. A step in the right direction.
