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Old 04-15-2025, 03:11 PM
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timmy timmy is offline
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Join Date: Jan 2011
Location: Delaware ny
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Dropping resistor

I’m looking to drop a 9 volt battery to 3.5 volts around 1 amp load momentarily with a resistor. Does anyone know how to do this math ? Or a 7805 regulator but I don’t know if it can go down to 3.5v.

Last edited by timmy; 04-15-2025 at 03:17 PM.
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