A good power supply is a must if you do hobby electronics. However a low end variable voltage power supply (like the one pictured to the left) can cost more than $100. most of the time, electronics need 3.3v, 5v or 12v. so in this tutorial, ill show you how to make a bad ass 12v and 5v power supply.
12v line: 198 watts, 12v@16.5amp
5v line: 5 watts, 5v@1amp
