vacuum tuben.

Brit.

/ˈvakjuːm tjuːb/,

/ˈvakjuːm tʃuːb/, U.S.

/ˈvækˌjum ˌt(j)ub/

1. An evacuated tube or pipe, esp. one along which vehicles or other objects can be propelled by allowing air to enter behind them.

ΘΚΠ

society > travel > means of travel > a conveyance > other means of conveyance > [noun] > evacuated tube or pipe

vacuum tube1784

1784 in Pall Mall Mag. (1896) Aug. 586 Grand Vacuum Tube Company. Direct to Bengal.

1846 Patent Jrnl. 4 July 90/1 Fig. 1 is a..section of a railway carriage and traction tube. Fig. 2 is a cross section..showing the communication between the carriage and the piston. The traction or vacuum tube..is the same as generally used.

1920 D. H. Lawrence Touch & Go 7 A system of vacuum tubes for whooshing Bradburys about from one to the other.

1972 Daily Tel. 30 Dec. 6/5 The explanation, it is believed, is that while it was being scooped up it became mixed with the dark grey soil usually found on the Moon. It could not have changed as a result of exposure to the Earth's atmosphere, because it is stored in vacuum tubes.

1973 Times 15 Oct. 6/3 High-speed surface systems should be studied as an alternative to air travel, including advanced systems such as the gravity vacuum tube, which would give high speeds for amazingly low energy consumption.

1974 Times 22 Mar. (Buses Suppl.) p. i/2 Magnetic levitation, vacuum tubes, vertical take-off aircraft, and small-scale automatic and semi-automatic ‘people-movers’ of all kinds for urban situations.

2. An evacuated tube (sense 2g) (originally a glass cylinder); spec. one used as a thermionic valve.

ΘΚΠ

the world > space > shape > curvature > curved three-dimensional shape or body > cylinder > [noun] > quality of being hollow cylinder > hollow cylinder or tube > other types

bulb-tube1839

vacuum tube1859

1859 J. P. Gassiot in Philos. Trans. (Royal Soc.) 148 15 The direct discharge is that which is visible when taken from two wires hermetically sealed in a vacuum tube.

1880 Rep. 50th Meeting Brit. Assoc. Advancem. Sci. 260 The band-spectrum of nitrogen... It was first observed by Plücker (1858) in a vacuum tube.

1901 Engineer 17 May 507/2 One of the most interesting exhibits was a number of electric vacuum-tube lamps.

1915 W. H. Eccles Wireless Telegr. & Teleph. 376 A. Langmuir has applied his vacuum tube with third electrode (the ‘pliotron’) in a manner different from those just described.

1923 Electr. Communication II. 157/2 No single advance has contributed so largely to change our whole picture of art as the advent of the thermionic valve or vacuum tube as it is designated in America.

1931 J. A. Moyer & J. F. Wostrel Radio Handbk. vi. 317 The increased use of vacuum tubes for other than radio services has made it necessary to design vacuum tubes which will be suitable for handling much larger currents.

1957 K. R. Spangenberg Fund. Electron Devices xi. 235 The transistor is, like the vacuum tube, a device that owes its amplifying characteristics to electric-field control of current within the device.

1972 Sci. Amer. June 52/2 It produces a television-like image without the cumbersome vacuum tube, electron beam and high voltage required by conventional television systems.

attributive.1923 Electr. Communication II. 157/2 The vacuum tube telephone repeater has made possible telephonic transmissions over practically unlimited distances.1929 K. Henney Princ. Radio xiv. 343 Such vacuum tube voltmeters are useful at all audio and nearly all radio frequencies, and can be made to read d.-c. voltages.1950 A. Marcus Radio Servicing xiii. 585 The vacuum-tube voltmeter..is rapidly becoming one of the most useful instruments employed in radio servicing.

This entry has not yet been fully updated (first published 1986; most recently modified version published online December 2021).

g. Electronics. A sealed container, evacuated or gas-filled, containing two or more electrodes between which an electric current can be made to flow; spec. (a) a cathode-ray tube; (b) (chiefly U.S.) a thermionic valve. Frequently in combination with preceding noun, as discharge tube, electron tube, picture tube, vacuum tube.

ΘΚΠ

the world > matter > physics > electromagnetic radiation > electricity > discharge of electricity > [noun] > container

tube1859

Geissler tube1863

Crookes's tube1884

oscilloscope1915

the world > matter > physics > electromagnetic radiation > electronics > electronic devices or components > thermionic valve > [noun]

tube1859

valve1905

thermionic valve1909

bottle1940

the world > matter > physics > electromagnetic radiation > electronics > electronic devices or components > thermionic valve > [noun] > vacuum tube or thermionic valve

vacuum tube1859

trigger tube1894

audion1906

pliotron1915

diode1919

electron tube1919

negatron1919

pentode1919

power valve1919

tetrode1919

triode valve1919

magnetron1921

bright emitter1923

peanut valve1923

peanut1924

power tube1924

multiple valve1929

thyratron1929

heptode1932

hexode1933

pentagrid1933

acorn tube1934

octode1934

triode-pentode1936

triode-hexode1937

transitron1939

trochotron1947

steering diode1957

the world > matter > physics > electromagnetic radiation > electronics > electronic devices or components > cathode-ray tube > [noun]

cathode-ray tube1905

tube1905

1859 Philos. Trans. (Royal Soc.) 148 15 The direct discharge is that which is visible when taken from two wires hermetically sealed in a vacuum tube.

1898 London, Edinb. & Dublin Philos. Mag. 5th Ser. 46 296 Hertz made the rays travel between two parallel plates of metal placed inside the discharge-tube.

1905 Electrician 16 June 335/1 The phosphorescent spot on the screen of the tube follows strictly any changes which occur in the strength of the field.

1915 Electrician 21 May 241/2 In the X-ray tube..the space charge effects are very much exaggerated.

1922 C. W. Taussig Bk. Radio ix. 111 The tubes used are 5 watt transmitting tubes.

1940 H. M. Watson et al. Understanding Radio v. 223 As you experiment with this one-tube set, you will hear many stations faintly.

1947 R. Lee Electronic Transformers & Circuits i. 3 The limitations which inhere in transformers often influence the choice of amplifier tubes.

1973 G. J. King Newnes Colour Television Servicing Man. I. i. 29/2 The output direct from the tripler is too high an impedance to accommodate the normal beam current swings of the tube without serious voltage fluctuations.

1981 L. Nashelsky & R. L. Boylestad Devices iv. 128 Production rose from about 1 million tubes in 1922 to about 100 million in 1937.

单词	vacuum tube
释义	vacuum tuben. Brit. /ˈvakjuːm tjuːb/, /ˈvakjuːm tʃuːb/, U.S. /ˈvækˌjum ˌt(j)ub/ 1. An evacuated tube or pipe, esp. one along which vehicles or other objects can be propelled by allowing air to enter behind them. ΘΚΠ society > travel > means of travel > a conveyance > other means of conveyance > [noun] > evacuated tube or pipe vacuum tube1784 1784 in Pall Mall Mag. (1896) Aug. 586 Grand Vacuum Tube Company. Direct to Bengal. 1846 Patent Jrnl. 4 July 90/1 Fig. 1 is a..section of a railway carriage and traction tube. Fig. 2 is a cross section..showing the communication between the carriage and the piston. The traction or vacuum tube..is the same as generally used. 1920 D. H. Lawrence Touch & Go 7 A system of vacuum tubes for whooshing Bradburys about from one to the other. 1972 Daily Tel. 30 Dec. 6/5 The explanation, it is believed, is that while it was being scooped up it became mixed with the dark grey soil usually found on the Moon. It could not have changed as a result of exposure to the Earth's atmosphere, because it is stored in vacuum tubes. 1973 Times 15 Oct. 6/3 High-speed surface systems should be studied as an alternative to air travel, including advanced systems such as the gravity vacuum tube, which would give high speeds for amazingly low energy consumption. 1974 Times 22 Mar. (Buses Suppl.) p. i/2 Magnetic levitation, vacuum tubes, vertical take-off aircraft, and small-scale automatic and semi-automatic ‘people-movers’ of all kinds for urban situations. 2. An evacuated tube (sense 2g) (originally a glass cylinder); spec. one used as a thermionic valve. ΘΚΠ the world > space > shape > curvature > curved three-dimensional shape or body > cylinder > [noun] > quality of being hollow cylinder > hollow cylinder or tube > other types bulb-tube1839 vacuum tube1859 1859 J. P. Gassiot in Philos. Trans. (Royal Soc.) 148 15 The direct discharge is that which is visible when taken from two wires hermetically sealed in a vacuum tube. 1880 Rep. 50th Meeting Brit. Assoc. Advancem. Sci. 260 The band-spectrum of nitrogen... It was first observed by Plücker (1858) in a vacuum tube. 1901 Engineer 17 May 507/2 One of the most interesting exhibits was a number of electric vacuum-tube lamps. 1915 W. H. Eccles Wireless Telegr. & Teleph. 376 A. Langmuir has applied his vacuum tube with third electrode (the ‘pliotron’) in a manner different from those just described. 1923 Electr. Communication II. 157/2 No single advance has contributed so largely to change our whole picture of art as the advent of the thermionic valve or vacuum tube as it is designated in America. 1931 J. A. Moyer & J. F. Wostrel Radio Handbk. vi. 317 The increased use of vacuum tubes for other than radio services has made it necessary to design vacuum tubes which will be suitable for handling much larger currents. 1957 K. R. Spangenberg Fund. Electron Devices xi. 235 The transistor is, like the vacuum tube, a device that owes its amplifying characteristics to electric-field control of current within the device. 1972 Sci. Amer. June 52/2 It produces a television-like image without the cumbersome vacuum tube, electron beam and high voltage required by conventional television systems. attributive.1923 Electr. Communication II. 157/2 The vacuum tube telephone repeater has made possible telephonic transmissions over practically unlimited distances.1929 K. Henney Princ. Radio xiv. 343 Such vacuum tube voltmeters are useful at all audio and nearly all radio frequencies, and can be made to read d.-c. voltages.1950 A. Marcus Radio Servicing xiii. 585 The vacuum-tube voltmeter..is rapidly becoming one of the most useful instruments employed in radio servicing. This entry has not yet been fully updated (first published 1986; most recently modified version published online December 2021). > as lemmas vacuum tube g. Electronics. A sealed container, evacuated or gas-filled, containing two or more electrodes between which an electric current can be made to flow; spec. (a) a cathode-ray tube; (b) (chiefly U.S.) a thermionic valve. Frequently in combination with preceding noun, as discharge tube, electron tube, picture tube, vacuum tube. ΘΚΠ the world > matter > physics > electromagnetic radiation > electricity > discharge of electricity > [noun] > container tube1859 Geissler tube1863 Crookes's tube1884 oscilloscope1915 the world > matter > physics > electromagnetic radiation > electronics > electronic devices or components > thermionic valve > [noun] tube1859 valve1905 thermionic valve1909 bottle1940 the world > matter > physics > electromagnetic radiation > electronics > electronic devices or components > thermionic valve > [noun] > vacuum tube or thermionic valve vacuum tube1859 trigger tube1894 audion1906 pliotron1915 diode1919 electron tube1919 negatron1919 pentode1919 power valve1919 tetrode1919 triode valve1919 magnetron1921 bright emitter1923 peanut valve1923 peanut1924 power tube1924 multiple valve1929 thyratron1929 heptode1932 hexode1933 pentagrid1933 acorn tube1934 octode1934 triode-pentode1936 triode-hexode1937 transitron1939 trochotron1947 steering diode1957 the world > matter > physics > electromagnetic radiation > electronics > electronic devices or components > cathode-ray tube > [noun] cathode-ray tube1905 tube1905 1859 Philos. Trans. (Royal Soc.) 148 15 The direct discharge is that which is visible when taken from two wires hermetically sealed in a vacuum tube. 1898 London, Edinb. & Dublin Philos. Mag. 5th Ser. 46 296 Hertz made the rays travel between two parallel plates of metal placed inside the discharge-tube. 1905 Electrician 16 June 335/1 The phosphorescent spot on the screen of the tube follows strictly any changes which occur in the strength of the field. 1915 Electrician 21 May 241/2 In the X-ray tube..the space charge effects are very much exaggerated. 1922 C. W. Taussig Bk. Radio ix. 111 The tubes used are 5 watt transmitting tubes. 1940 H. M. Watson et al. Understanding Radio v. 223 As you experiment with this one-tube set, you will hear many stations faintly. 1947 R. Lee Electronic Transformers & Circuits i. 3 The limitations which inhere in transformers often influence the choice of amplifier tubes. 1973 G. J. King Newnes Colour Television Servicing Man. I. i. 29/2 The output direct from the tripler is too high an impedance to accommodate the normal beam current swings of the tube without serious voltage fluctuations. 1981 L. Nashelsky & R. L. Boylestad Devices iv. 128 Production rose from about 1 million tubes in 1922 to about 100 million in 1937. extracted from tuben. < n.1784 as lemmas
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vacuum tuben.

> as lemmas