Hello all, just got done a few days ago with my DIY PC fan stir plate. I have it working, but it seems a little underwhelming power wise and I need some advise on the potentiometer and rocker switched I used.
I used a 12v pc fan, a 9v DC outlet which I have read work and feel confident about. However, I purchased a 10k ohm/0.5 watt potentiometer and a rocker switch that is rated for 16A, 125 VAC. I have read the recommended specs are 25k Ohm 3 watt potentiometer, and 12V, 30 Amp rocker.
Like I said, it works somewhat well, and I get a vortex that goes maybe 2-3 inches downward, but I would like to know if by switching 1 or both of the parts I could get a higher speed stir plate.
I am sure this is a painfully stupid question, and will get many bad comments, but I am a geologist, not an electrician.
Thanks for any help!