fan controlers
i have a fan thats still a bit noisy with 7 volt.
with 5 it wont spin up.
is there a way to build a fan controler that instead ov voltage, it controls the rpm? would it be hard?
my idea is: build a circuit that sends impulses of 12 volts, so that it starts up, but never reaches high speeds, because they are only impulses.
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