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From: David Lesher
Subject: Re: (Avionics) How can this circuit produce an "inductive surge"?
Date: Fri, 27 Sep 2002 15:52:37 +0000 (UTC)
Organization: NRK Clinic for habitual NetNews Abusers - Beltway Annex
Reply-To: firstname.lastname@example.org (David Lesher)
NNTP-Posting-Date: Fri, 27 Sep 2002 15:52:37 +0000 (UTC)
>2. One of the field slip ring brushes is grounded to the alternator
> frame, hence the VR modulates the field current by breaking
> the path between the field switch and the non-grounded brush.
> Only a few MOPAR alternators used low side switching as depicted
> in your diagram. I've never seen one of these on an aircraft.
Sorry to disagree on this minor point. But both LOTS of Mopars and
GM's used low-side regulation. So did my Datsun, which now has a
Mopar regulator on the firewall now....
Many Delco alternators had/have a "full field test tab" where you
stuck a screwdriver in and grounded a test point to bypass the
regulator and make it work full-bore.
I've been told Fords regulated the upper side but I never worked
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