Question

What type of electrical device used a "Cat's Whisker"?

Answer 1

A "Cat's Whisker" was an early type of electronic device used in the early 1900s. It was an early form of a diode, which is an electrical component that allows current to flow in only one direction. The device consisted of a thin wire, known as a "whisker", which was placed against a crystal of semiconducting material, such as silicon or germanium. When the wire touched the crystal in the right spot, it would conduct electricity, allowing current to flow.

Answer 2

radio receivers

devices such as the “cat whisker” detector, which was composed of a fine wire (the whisker) in delicate contact with the surface of a natural crystal of lead sulfide (galena) or some other semiconductor material.