Before the advent of flat-panel displays, cathode ray tubes were the mainstream. CRTs consist of a giant vacuum tube with an electron gun inside, which projects electron beams onto a phosphor screen ...

The cathode ray tube amusement device is the earliest known interactive electronic game to use a cathode ray tube (CRT). It is a device that records and controls the quality of an electronic signal.

When I was a kid, all we had were the fat TVs that were stuffed with cathode ray tubes. I can recall my grandmother having a really old TV that you had to turn on and wait until the cathode tubes ...