Save guides, add subjects and pick up where you left off with your BBC account. Circuit symbol: the diode symbol consists of a triangle pointing towards a line. The triangle represents the anode ...

How does a varactor diode work? To form the PN junction that makes a diode, half the piece is doped with a trace amount of “donor atoms” that have one more electron than the intrinsic stuff to make ...

Diodes are essential semiconductor devices used to control the direction of electrical current in circuits. This tutorial explains how diodes work, their different types, and why they are critical ...

The four-layer diode was the key to William Shockley's plan to revolutionize AT&T's phone system. It was a great device in theory, but not in practice -- at least not at the time when Shockley ...