Okay, today i got an idea of what to do with my main computer fan. I figured id see if could switch the power polarities on the fan therefore changing the direction the fan pulls/blows air(this way i can choose weather i want it to pull in cold air or suck out the hot). When i thought about how to wire the fan into a switch that could switch the polarities i was at a blank (even though ive done stuff like this on a smaller scale) also i thought i could put a "dimmer" switch on and use it as a speed control for the fan.
Has anyone done this before? can it be done with parts from radio shack? (once again, im too cheap to order from all electronics:rolleyes: )
Please reply if you have any ideas or ways to set up the switches and stuff.
Thanks,
"Fred"![]()


). When i thought about how to wire the fan into a switch that could switch the polarities i was at a blank (even though ive done stuff like this on a smaller scale) also i thought i could put a "dimmer" switch on and use it as a speed control for the fan.

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i had a wonderful switch plan for it made up today too 