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| Aquadag |
in electronics, trademark for the graphite coating on the inside of some cathode ray tubes. |
| cathode ray |
a stream of electrons emitted by a cathode in a vacuum tube. |
| CRT |
abbreviation of "cathode-ray tube," a vacuum tube in which a stream of electrons is accelerated and focused in a beam that produces lighted traces on a screen at one end of the tube, used in television sets, computer monitors, and the like. |
| electron gun |
the electron-emitting cathode in a cathode ray tube together with the electromagnetic apparatus that collects and focuses the electron stream. |
| grid bias |
the potential difference applied between the control grid of an electron tube and a cathode. |
| grid current |
the flow of electrons from the grid to the cathode of a vacuum tube. |
| kinescope |
a cathode-ray tube that directs a beam of electrons to reproduce a transmitted picture on a luminescent screen; picture tube. [1/3 definitions] |
| picture tube |
the cathode-ray tube in a television receiver, with a screen at one end on which televised images appear. |
| shot effect |
random fluctuation in the flow of electrons emitted by a heated cathode, resulting, when amplified, in a popping noise. |
| thermionic tube |
a vacuum tube in which an electrically heated cathode causes the emission of electrons or ions. |
| triode |
a vacuum tube that contains an anode, cathode, and control grid. |
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