Updated instrument voltage regulator
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More Turbo
Joined: Mar 2002
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From: Colstrip, MT
Updated instrument voltage regulator
Below is a website to an updated version of an instrument voltage regulator that appears to be a little more reliable than the old IVR's. I have not tried it myself, but it does look interesting. Does anybody know if this would or would not work? http://www.164club.org/spanreg.html
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From: Virginia
I wonder if anyone has done any testing as to the current draw of the guage circuits? Those regulators are usually rated for a 1.5 amp load WITH a heat sink. Of course if the amp draw was less, you would not need a heatsink. Otherwise, it should work good I would think.
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From: Virginia
Originally Posted by fatherdoug
On the 78 f-150, the fuse for the instrument panel is rated at three amps. Would a 3 amp circuit require a heat sink?
3 amps is too much for that regulator unit in the article. But just because the factory puts a 3 amp fuse in the circuit, doesn't mean it draws 3 amps. The current draw of the circuit needs to be measured with a digital voltmeter set up for current measurement. And I am thinking your worst current draw to the guages on the older trucks will be with a full tank of gas, a warm engine, and a high oil pressure reading.
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