Internal or External Regulator
I need to replace my alternator off a '69 350 SBC. Looking at the back, I highlighted the labels, post for battery on far left and ground on far right there is also a plug in center that is labeled "R" on the left and "P" on the right. see photo.
Should I assume this is not internally regulated and the "R" needs to connect to an external regulator? What does the "P" connect to?
I would prefer a 3 wire with internal regulator......but thinking that is not what I have. Any help is appreciated..........