Vacuum Tube (Noun)
Meaning
Electronic device consisting of a system of electrodes arranged in an evacuated glass or metal envelope.
Classification
Nouns denoting man-made objects.
Examples
- The old television set contained several vacuum tubes that had to be replaced periodically.
- In the laboratory, the physicist was studying the properties of a vacuum tube called a magnetron.
- The amplifier circuit relied on a vacuum tube to increase the voltage of the weak signal.
- The audio equipment consisted of a few preamplifiers and amplifiers that used vacuum tubes for their warm sound.
- The radio from the 1940s still worked thanks to the replacement of its vacuum tubes with modern equivalents.