When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Anyone who has been paying attention at all in recent years has noticed that both the types and ...

In the type of television receiver most commonly used at the present time, the picture is produced on the fluorescent screen of the cathode ray tube, which is viewed directly or through a suitably ...

A DEMONSTRATION was given in London recently of the projection of received television pictures on to a screen measuring 4 ft. by 3 ft., a size which is intermediate between the conventional ...