vacuum tube


Definition of vacuum tube

: an electron tube evacuated to a high degree of vacuum

Examples of vacuum tube in a Sentence

Recent Examples on the Web The device has vacuum tube configurability and has options for single or dual-tube collection. al, "Auburn supports new program to create safer alternative for COVID-19 testing," 8 July 2020 That’s not an unfair overview, on paper, of George Dyson’s new tech history, Analogia, which turns on the moment when de Forest adds a bit of wire to Fleming’s vacuum tube and makes modern electronics possible, hooray. Wired Staff, Wired, "WIRED’s Ultimate Summer Reading List," 2 July 2020 Apart from looking cool, the four vacuum tubes actually contribute to the receiver’s rich, deep sound. Popular Science, "Stereo receivers and amplifiers that make your music better," 29 Jan. 2020 Machines that used vacuum tubes also required massive amounts of power and were prone to failure as the tubes burned out frequently. Rohini Krishnamurthy, Quartz India, "How India’s premier science institute fired up Wipro’s growth as an IT giant," 5 Jan. 2020 This elegant vacuum tube preamp works with both moving magnet (MM) and moving coil (MC) cartridges to maximize the potential of your hi-fi system. Popular Science, "Turntable preamps for every budget," 23 Jan. 2020 Computers built using vacuum tubes were not suitable for widespread use due to their size. Rohini Krishnamurthy, Quartz India, "How India’s premier science institute fired up Wipro’s growth as an IT giant," 5 Jan. 2020 Similarly, Fender’s electronic amplifier division is putting out guitar amps that, using custom software and a ton of onboard processing power, sound indiscernible from its amps that use vacuum tubes. Mike Murphy, Quartz, "Fender is reinventing itself for the future of music while holding onto its past," 13 Dec. 2019 Microprocessors replaced an older technology called vacuum tubes. Rohini Krishnamurthy, Quartz India, "How India’s premier science institute fired up Wipro’s growth as an IT giant," 5 Jan. 2020

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'vacuum tube.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of vacuum tube

1859, in the meaning defined above

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Time Traveler for vacuum tube

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The first known use of vacuum tube was in 1859

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Cite this Entry

“Vacuum tube.” Dictionary, Merriam-Webster, Accessed 22 Sep. 2020.

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More Definitions for vacuum tube

vacuum tube


English Language Learners Definition of vacuum tube

US : a glass tube that was used in the past in computers, televisions, etc., to control the flow of electricity

vacuum tube


Medical Definition of vacuum tube

: an electronic device in which conduction by electrons takes place through a vacuum within a sealed glass or metal container and which has various uses based on the controlled flow of electrons

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