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Old 07-11-2020, 06:33 PM   #16
JSeery
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Default Re: 1940 Ford Deluxe Voltmeter for 12 Volts

Quote:
Originally Posted by fortyonerag View Post
Apols for digging up an old thread, but I have to ask: why can't you use an isolated solid state converter for the voltmeter?

My understanding is the solid state units simply provide a consistent 6V drop across them regardless of load.

I'm not questioning the logic of the resistor - what am I missing?
Isn't the solid state units attempting to maintain a consistent 6v? Doesn't that defeat the purpose of a voltmeter? You are wanting to see the variations in voltage, not look at a meter showing you a constant reading as the voltage varies. Once the voltage dropped below some level it would not be able to correct for it, but what you end up with is an idiot light, on or off.
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