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.

Lead recovery and recycling from cathode ray tube (CRT) glass represent a significant challenge and opportunity in the management of electronic waste. CRT glass, particularly from the funnel section, ...

A question for you: if the cathode ray tube had never been invented, what would an oscilloscope look like? We’re not sure ourselves, but it seems like something similar to this mechanical tachyscope ...