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Posted by Chris Case [75.36.35.126] on Sunday, September 02, 2012 at 12:33:37 :
In Reply to: Re: M37 tank sender details? Ohms? posted by Sherman in Idaho [72.47.9.37] on Sunday, September 02, 2012 at 12:18:18 :
Sherm, you made me think.
IIRC, any swinging needle is measuring volts. In the case of these gauges, the resistance of the sender varies, which varies the volts flowing through it, which the gauge reads.
Hmmm, I better go dig through my heap-o-gauges. I may have a mechanical oil and temp, and maybe a 12v SW fuel? That would solve most of my dilemmas. But I do need to build a tank with the proper sender mount.