Regulator gone bad?

It was the 77R06285 or 86 unit shown here. Don't remember which one I bought.
http://chucker54.stores.yahoo.net/volreg.html

Alternator/regulator wiring is original with the exception of the alt output wire as mentioned. Standard, double field wire Mopar style alt.

I'll have to dig up another battery. Yeah, I'll testing back at the battery tomorrow. Only had a test light and not my DVM on hand today.