For the Homebrewer, having a multi voltage power supply can be very handy especially if you are just experimenting. A cheap switched power supply used in computers can give you all the power you need for your experiments, but the problem is that it will not power up when disconnected from the computer. The solution is easier than you think, due to the fact that there is a standard colour code used by most manufactures of ATX power supplies and you don’t need to open the box to get it up and running. Although there is a lot of wires, … Continue reading →