Ok.. I was just wondering if I had them in series, parallel, or both.. I don't know what kind of voltages I have running through there...
The comair won't spin at all at 5v, even if it is already spinning. Don't know about 7v...
I'm using a 25 ohm rheostat. I can crank it down all the way, and it's fine. It just needs to be turned up some when you start it. At the lower settings, the motor makes a slight 'ticking' sound. Add a little juice, and the noise goes away, and you have a low pitched whirr. Not too bad.
Question: the comair is rated at 24v, and draws .75A. Does this mean it is a 32ohm resistor? Therefore, at 12v, it draws .375A. Now, if you add a 25 ohm resistor to the circuit, how much voltage is flowing through the fan? Or does the resistor just let less current through? What make the fan slow down!?? Use numbers in your answer..
(i'm such an accountant.)