FYI, I'm using an electric temp gauge from a '51 GMC big truck (I don't like
the capillary tube type). After further research, 25ohm, 10W works for the gas
gauge only and 40ohm, 20W for both the gas and electric temp gauge if fed from
one wire. It appears that a regulator is not necessary.
Also, 57 is the correct bulb number for the dash illumination lights for 12V
apps. Anyone know what the correct number is for the headlights? Preferably
halogens.....
Thanks for all the input.
Allen in Seattle
'50 3100
>>> Grant Galbraith <trks@javanet.com> 06/28/99 05:30PM >>>
You don't need a regulated supply for your gas gage. Radio shack sells 25 ohm
resistor that works. Think
it's 10 watts. Put it between the ign switch and gage. You don't need one for
temp gage, it should be the
capillary tube type.
Another post on this thread mentions two 6 volt batteries used together. If
you go this route they sell
a combo 6/12 battery though it is expensive I don't think it's more than two 6
volters.
Grant 50 3100
Allen L. Jones wrote:
> 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
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