Using a few diodes and a LED, you can make a nice indicator as shown in associated schematic diagram that can be used for a lot of applications (with a bit of luck). It’s quite suitable for use in ...

I went to the local Radio Shack (yes, I'm far out enough into the sticks we still got Radio Shacks) and got a 8A 400V bridge recitifer, cut open a power cable, and wired it according to the schematic ...

Everyone loves a full-wave bridge rectifier, but there’s no denying that they aren’t 100% efficient due to the diode voltage drop. Which isn’t to say that with some effort we cannot create an ideal ...