Also Known As: CRT
Cathode Ray Tube Definition
Definition of Cathode Ray Tube
By Anne Marie Helmenstine, Ph.D., About.com Guide
Diagram of a color CRT: 1. Electron gun 2. Electron beam 3. Focusing coil 4. Deflection coil 5. Anode 6. Mask for separating beams for colors 7. Phosphor layer with red, green, and blue zones 8. Close-up of the phosphor-coated layer.
Søren Peo PedersenSee More About
Definition: A cathode ray tube is a type of vacuum tube which contains a source of electrons and a fluorescent screen, with some means to accelerate and deflect the electron beam. Cathode ray tubes commonly are used to form images on the fluorescent screen.
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