Bill,
I guess I was asking about the details on how they did that. I would assume that they used a pc board that was isolated from the case and then the polarity could be switched. Is that how it was designed?

Fred


1951 GMC 1 Ton Flatbed -- It is finally on the road and what a great time I have driving it!
1951 1 Ton Completed


My Chevy Master 4 Door is on the Road!