A few weeks ago, I was working on an audio amplifier with my dad in the garage. As I began to wire it up to test a new set of speakers we had bought, I received a nasty shock when plugging in an older, frail patch cable. Now, something didn’t seem to add up here; I had used this cable before on my equipment and never had problems. However, in this instance, something was different; the older tube amplifier we were using had no ground. In today’s industry and even in household use, electrical … [Read more...]