Recent content by slo

If that makes sense ;)

I was looking at the principle behind the diode bridge here: http://en.wikipedia.org/wiki/Diode_bridge To my understanding there is one "hot" wire in your AC wall outlet you should not touch, the "tip" as it were, that can be idenified by using a simple mains tester...

We routinely test "continuity" in our phone lines by holding a red/green LED to our "tip" (hot) and "ring" (cold) which lights up bright red if all is well with the AC signal. A bridge rectifier added to the mix let's the "green" shine; reversing the LED wires on + and - will make the...