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Trusty multimeter in hand, I'm left to determine that I have a bad diode in my alternator. I've been perusing the forums and https://studebaker-info.org/Tech/Bhend/avantalternatorarticle1.pdf by Bill Henderson. (Awaiting the shop manual to arrive.) I have a call into a local auto electrical rebuild shop and I'm poking around the alternator. I'd love to have a backup, like one of the Honda or Toyota alternators like others have done so I can still drive my daily while the original is being rebuilt. I'm not a good electrical diagram reader. I have three wires coming from the harness to the alternator, white (or so faded they look yellow to me), white with black stripe and white with red stripe. The resister looking thing attached to the back of the alternator -- is this the Prestolite regulator? (see img 1). Whatever it is, it is not actually attached to the alternator, as I found it loose, not broken, in the boot. (Img 2). The red stripped wire goes to the terminal with the boot, the black-stripped goes to the other terminal, and the solid looks like it is being grounded to the post that holds the "regulator". Thoughts/Comments/Suggestions welcomed. -Dobb