plural of cathode ray

(electronics) A type of cathode that does not use a heating element to produce emission of cathode rays (electrons), beyond base thermionic emission (usually by field electron emission, secondary emission, photoelectric emission)

a vacuum tube in which electrons from a heated cathode are focused and deflected onto a phosphorescent screen; used in television sets etc

The dark space in a glow discharge between the cathode glow and the negative glow.

plural of cathode dark space

(electronics) A vacuum tube that displays still or moving images (such as for a television), by controlling the direction of a cathode ray emitted towards the front of the tube. The front is coated by a layer of fluorescent material, so that it emits light when struck by the beam.

plural of cathode-ray tube

plural of cathode ray tube