VictorHK

sorry i'm not very technical, could you please help out? here's what I want to put together (pic below). I'm going to be using computer fans to spin the magnets so that I can have 5 spots to place my formulas for stirring. The stirrers I have found are too expensive. With your help I'll be able to build my own, and help others to do the same. I need to know more about the following things... Which power adapter should I use? How much DC? Which Potentiometer I should use for the 5 speed control knobs? What wiring is best? I appreciate your help in advance. -VictorHK