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Gauge restoration/housing refinishing Latest

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Re: Gauge restoration/housing refinishing up-date

Here are the parts of the rheostat out of my '71 if anyone's interested. Much different design than Brosky's. May not be original. I cropped this image on photobucket but for some strange reason it keeps showing up here in its uncropped form :madder:
rheostat001-1.jpg
 
Re: Gauge restoration/housing refinishing up-date

Very similar to what was used on cruise controls and "automatic" air conditioning of the sixties. I believe that this design was referred to as a "potentiometer".

The resistance was in the coiled winding, versus the later circuit boards.

Randall, Bobby or Dave, you guys remember these from GM heaters?
 
Re: Gauge restoration/housing refinishing up-date

Yeah, my uncle had an old farm truck with a heater control like that; but I think it dated from the 40s, not the 60s. Pretty sure my 62 Chevy & 65 Olds had switches for the heaters, tho the dash light dimmers were probably coils.

Except for the bracket, the above unit looks basically identical to both the TR2-3 heater control and the dash light dimmer on later TR3A.
 
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