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RE: Voltage Stabilizer

To: "'Phillip'" <metaz@knology.net>, spitfires@autox.team.net
Subject: RE: Voltage Stabilizer
From: Richard Gosling <richard.gosling@exprogroup.com>
Date: Mon, 15 Apr 2002 13:47:59 +0100
Philip,

Yep, sounds like your stabiliser is bad.

The stabiliser is supposed to output, I believe, 10V (not 6).  This cannot
be measured on most digital multi-meters, because it actually works by
switching rapidly between the supply voltage (13-14V when the alternator is
working) and 0V to give a 10V average - the digital meter will pick up on
the instantaneous values, while a needle meter will show the average.

The stabiliser need to be grounded to do its job.  It is quite possilble,
therefore, that when you removed it from the speedo it lost its ground
(through the casing, into the speedo and grounded via the speedo's ground
wire), so the output leaped up to match the input.

Was your temperature gauge working before?  If so, the stabiliser is not
your suspect (unless your temp gauge was reading unusually high, in which
case your fuel gauge would do the same).

Richard & Daffy

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