Cathode Ray Tube Amusement Device

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.

The strength of the electronic signals produced by the amusement device is controlled by knobs which influences the trajectory of the CRT's light beam. The device is purely electromechanical and does not use any memory device, computer, or programming.