My attached circuit calls for a 2k pot used as a variable resistor and I only have a 5k pot. My supply is either 5.2v/400ma or 12v/400ma DC. The output fan is 12v/200ma. The pot works fine using either supply. The problem I'm having is that I don't have enough control of the fan speed. I get off and full speed, but anything in-between is almost non existent. The fan seems to jump from slow to full speed with very little adjustment of the pot. I was wondering if that was because of the 5k pot instead of the 2k pot or perhaps a function of the fan.
I believe I have the pot wired correctly, jumping the wiper to one of the outside terminals.
I would appreciate any suggestions or help. I'm a bit of a novice/dangerous now. It's been years since I did any serious electronics work. Thanks!
I believe I have the pot wired correctly, jumping the wiper to one of the outside terminals.
I would appreciate any suggestions or help. I'm a bit of a novice/dangerous now. It's been years since I did any serious electronics work. Thanks!
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