microbe,
I think the internal regulator looks at system voltage through its one and only single wire, and adjusts voltage accordingly.
This can only mean the regulator is defunct, and needs to be replaced, although it might also mean the voltmeter used to check the voltage was out of whack.
I haven't a clue what a Enos Blackbox is. Could this have toasted the alternator regulator, or could it be giving you a false reading. More detective work is in order.
Stuart
