Re: [CAD_CAM_EDM_DRO] computer power supply

I am using a Packard Bell power supply model pb150. I know I know it is
older then dirt but it should work for this project. I have tried putting
resistors across the black and yellow leads and the fan motor spins but slows
down almost immediatly. I tried differnet sized resistors from 100 ohm to 470
k and it didnt seem to make a difference in how long the fan spun. Am I
doing something wrong?

Gerald
Iowa