vacuum tube
Học thuậtThân thiện
Definition
Noun: - An electronic device consisting of a system of electrodes arranged in an evacuated glass or metal envelope: A vacuum tube is a component that controls electric current through a vacuum in a sealed container. It was fundamental in early electronics for amplification, switching, and signal processing.
Examples of Usage
- Noun:
- The old radio was repaired by replacing a faulty vacuum tube.
- Before the transistor, computers relied on thousands of vacuum tubes, which generated a lot of heat.
Advanced Usage
- "to be a vacuum tube": to function as or be based on vacuum tube technology.
- The amplifier is a vacuum tube design, prized by audiophiles for its warm sound.
Variants and Related Words
- Thermionic valve (n): Another term for a vacuum tube, commonly used in British English.
- The circuit diagram specified a thermionic valve for the output stage.
- Tube (n): A common shortened form of "vacuum tube".
- He collects vintage tubes for his guitar amplifier.
- Valve (n): A common shortened form of "thermionic valve".
- The old television set needs a new valve.
Synonyms
- Electron tube: A technical synonym emphasizing the flow of electrons.
- Thermionic tube: A synonym highlighting the thermionic emission of electrons.
Related Phrases
- Vacuum tube amplifier: An amplifier that uses vacuum tubes to increase the power of a signal.
- Many guitarists prefer the sound of a vacuum tube amplifier.
- Vacuum tube rectifier: A vacuum tube used to convert alternating current (AC) to direct current (DC).
- The power supply uses a vacuum tube rectifier for its high-voltage circuit.
Noun
- electronic device consisting of a system of electrodes arranged in an evacuated glass or metal envelope