because cathode ray tube is the heart of the television.
They were called thermionic valves. there was also the cathode ray tube (CRT)
Your Television. You - Your Tube -Television (From Cathode Ray Tube)
A "CRT" is a cathode ray tube. An old style computer monitor (not computer).
cathode ray tube
None of these appliances use a cathode ray tube. Older type TVs used a cathode ray tube, its common name was the picture tube.
It's a cathode from a very old cathode ray tube. It is the far end part of an old television cathode ray tube (used in other machines than television too).
cathode ray tube and other kind of chemicals
in the year of 1933
It's a CRT which stands for Cathode Ray tube.
A cathode ray tube (CRT) emits light when electrons strike the front of the glass tube that is covered in a phosphor coating. The front of the tube is the anode of the tube. The electrons are fired from the rear of the tube by an electrode called the cathode. The electrons are formed into a beam or ray, hence the name of cathode ray tube. Although the electrons travel from the rear of the tube to the front, or from the cathode to the anode, conventional current actually flows the opposite direction. So, the current, as measured in amps will flow from the anode to the cathode.
CRT - cathode ray tube
television