[Stocker]

Thanks for the help & encouragement, guys, it means a lot. It's time to read up on converting to internally regulated, sounds like that's the best route to go. I had left it stock configuration because it had been working just fine for 47 years and I saw no good reason to change.

I'll probably learn this while reading 'how-to' threads, but is an internally regulated alternator necessarily a one-wire alternator? Because it sounds like that, too, is the preferred way to go.

Also hoping I can convert my new 80A, or do I need to toss it and buy another new one? So many questions, better get to reading.

First, though, I want to do some testing per RichardJ's post above.

Edit: I started by checking the blue wire & the red wire that VetteVet mentioned. They tested good, and the regulator is grounded.