Reusing an AT Case Power Supply Switch Old PC equipment has a lot of useful parts. One nice piece is the AT power switch. It is a double pole, single throw switch (DPST). Here is the schematic: Here is a picture of the switch showing the labels from the above schematic: Our switch has a rating of 10 amps at 125 Volts AC. Make sure you retain the mounting bracket and screws as well, as it will make it easier to install in your project later on. This article comes from Coprolite: http://coprolite.com/ The URL for this story is: http://coprolite.com/art57.html Copyright 1997-2006 Coprolite.com. Read our Terms of Use.