I'm out of town for the weekend, but as soon as i get home I'll scan and email some repair manual pages that cover the regulator I think you're dealing with. One variety has a round plug with a 3-wire connector, and the other has a 4-wire inline plug that resembles the one for a remote-regulator automotive setup. Both of them have a BIG cast aluminum heat sink and two big power transistors on ther bottom of the regulator.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
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