Dual field alternator in single field vehicle

Thanks for everyone's input.

Itate, exactly same as what I've got. The 2nd spade terminal doesn't look "normal".

Skykeith, I'm headed to a friend's house to borrow a VOM meter. I expect it is exactly same as you say. Will report back.

Abdyjoe and 70aarcuda, thanks for the links and drawings. I'll be saving those for future upgrades. Right now, I just need to get the car home. I'll try to find an electronic early style regulator to install for this drive before I leave.

Mike in FL