how do you vary the rpms just by the power going to it? im wanting to use a computer power supply instead of a ac/dc convertor. but if a ac/dc convertor is easier to use then ill do it. i found a ac/dc on radioshack.com (click link).
will that work? and how would i wire a fan to it just cut wires and solder (im good at that :)? could i wire atleast 2 fans to that one converter?
sorry to ask so many questions. i dont know nothing techincal about computers. just how to use them.