The early Mustangs (through '72?) had 6 volt instruments. They had a small
rectangular device behind the dash that dropped the voltage from 12. You
can't use a resistor, because the load varies. At no load, the resistor
wouldn't drop the voltage at all, and at short circuit the voltage would be
zero.
>Can anyone please tell me the correct group number for the gauge
illumination bulbs (and assuming
>the high beam indicator bulb is the same), and head lights for my '50 in
*12V*.
>
>In the tech section of the www.chevytrucks.org site, it says that
"Beginning around 1950, some
>vehicles have a small voltage regulator behind the dash that supplies a
stable voltage supply for the
>instruments....This isolates the instruments from the effects of varying
battery and generator voltage."
>I also have a 6V temperature gauge (in addition to the gas gauge) I need to
drop the voltage for and
>was wondering about specifics on these little regulator gizmos. Does
anyone know about them, and
>where I could get a repro or a substitution? If not, does anyone know off
the top of their head what
>value and size resistor I should use for the gas and temp gauges (I looked
on the tech site and
>couldn't find it)?
>
>Thanks,
>Allen in Seattle
>'50 3100
>
>oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
>
oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
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