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Cris · 01-13-2022, 03:39 PM

Starterman99

Thanks for weighing in. In my application, there is a resistance wire (from 12V at the ignition switch) in that goes to the number 1 terminal. Mine measured around 14 ohms, so current draw at 12V should be around 0.7 amps (12/17). So the number one terminal with the key in the on position and the engine not running should indeed be pulled down to a low voltage like I am seeing.

A simple calculation gives around 2.1V. I see a bit more than this. More like 3.2V.

01-13-2022, 03:39 PM	#9
Cris Registered User Join Date: Aug 2016 Location: Los Altos Hills, California Posts: 170	Re: 1963 C10 with 10SI Alternator Question Starterman99 Thanks for weighing in. In my application, there is a resistance wire (from 12V at the ignition switch) in that goes to the number 1 terminal. Mine measured around 14 ohms, so current draw at 12V should be around 0.7 amps (12/17). So the number one terminal with the key in the on position and the engine not running should indeed be pulled down to a low voltage like I am seeing. A simple calculation gives around 2.1V. I see a bit more than this. More like 3.2V.