How to build a motor reverser? Answered
I have computer fans that I use as fume extractors when I solder. I would like to know if there is something that I could build to reverse the direction of the fans.
On a slightly related note, I have a netbook cooler with 2 fans in it. I have tried reversing the polarity but they won't spin the other way. Can someone help? There are no diodes in the circuit, I have checked. I think it's because the fans can only work if hooked up properly, can someone confirm?