What's that Lassie? You say that Sunworshipper fell down the old
rec.crafts.metalworking mine and will die if we don't mount a rescue
by Fri, 06 Aug 2010 15:55:51 -0500:

Does anyone know exactly what an alternator wants and when?

Depends.
Some are regulated before the field coil, some after.
Some are internally regulated, some external.
I found two good books on the subject.

One is _The 12 volt doctors alternator book_

And the other is _Alternator Secrets_ by Lindsay Publications.

--

Dan H.
northshore MA.