I've been wiring up some standard 80mm and 120mm fans directly to a 9v power supply. The 80mm were marked red, black and yellow but the larger cheap 120mm fans I got (mistake) are all black and I need ...

I have a fan with a standard 3pin connector similar to this one:<BR>View image: http://img204.echo.cx/img204/5954/3pin7zb.jpg <BR><BR>I'd like to reduce the voltage ...