It's probably not a conventional volt meter. I would guess that current flowing
through the meter heats a bimetallic spring, which bends to move the meter
needle.
On Nov 17, 5:29pm, Barry Schwartz wrote:
> Subject: Voltmeter wiring
> Listers. . .
> I am about to replace the full set of Mallory gauges on my modified
> Spitfire with a set of gauges from a later TR6. The ammeter will be
> replaced with a voltmeter. Can someone tell me what the connections are.
> There are NO markings on the gauge itself and when I connected it to the
> battery, one lead to the pos. the other to the neg, for a short test it
> didn't seem to make any difference which terminals I connected them to, the
> gauge read voltage (@13v) and took about 10-15 seconds (too heavly
> dampened??) to get a reading either way??? Now I've been around
> electronics and electronic circuits for a LONG time, built my own 60Wtube
> guitar amp among other things, and know a little more than the average
> person about this subject, but this ones got me stumped!!! Every Volt
> meter I've ever hooked up to a battery needed to be connected correctly or
> you would get a "reverse" reading. Anyway, the latest wiring dia I have is
> for a 73 TR6 and it uses an ammeter. Does this voltmeter, as I assume,
> connect directly across the battery, via the ignition switch, or is it in
> line with the 'voltage stabilizer as used with the other gauges??
>
>
> Barry Schwartz (San DIego)
> bschwart@pacbell.net
>
> 72 V6/5sp Spitfire
> 70 Spitfire project
> 70 GT6+
>-- End of excerpt from Barry Schwartz
--
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Jeff S. Hapke Motorola CIPG Arlington Heights, IL
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