Diodes Explained In 4 Minutes

Diodes are everywhere. In audio equipment, even in battery radios,. The ins and outs. Cassette decks, Turntables. Not many people understand the first thing about diodes. Well, this is the first thing. There is much more to know, but this is enough to cover everyday life. Gary Keep it Simple.
Any Questions: Please put them in the comments below.

00:30 What they are
00:40 Diodes what for?
03:00 What does that mean?

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