Tungarn.

/ˈtʌŋɡɑː/

Etymology: < tung- (in tungsten n.) + ar- (in argon n.).

Electronics.

A type of low-voltage discharge tube filled with argon and having a heated cathode of thoriated tungsten, used as a rectifier for currents of a few amperes. More fully tungar rectifier. (A proprietary name in the U.S.)

ΘΚΠ

the world > matter > physics > electromagnetic radiation > electricity > electrical engineering > rectifier > [noun] > types of

Ferranti1892

mercury arc rectifier1906

mercury vapour rectifier1908

Tungar1917

1917 Official Gaz. (U.S. Patent office) 4 Dec. 270/1 General Electric Company... Tungar... Rectifying apparatus. Claims use since October, 1916.

1919 J. A. Fleming Thermionic Valve 84 That type of valve..which comprises a tungsten wire hot cathode and a tungsten plate cold anode, the bulb being filled with rarefied argon... This particular modification of the Fleming valve has been called a Tungar Rectifier.

1919 J. A. Fleming Thermionic Valve 85 The six-ampere tungar.

1926 S. O. Pearson Dict. Wireless Terms 238 Tungar Rectifier, a thermionic rectifier of special construction for dealing with fairly large currents.

1935 A. R. Nilson & J. L. Hornung Pract. Radio Communication xv. 710 The Tungar battery charger..is a device for charging storage batteries from an alternating-current line.

1966 McGraw-Hill Encycl. Sci. & Technol. (rev. ed.) VI. 61/1 Hot-cathode gas tubes... Three representative types may be distinguished, (1) the Tunger..; (2) the phanotron; and (3) the thyratron.

This entry has not yet been fully updated (first published 1986; most recently modified version published online June 2018).

单词	tungar
释义	Tungarn. /ˈtʌŋɡɑː/ Etymology: < tung- (in tungsten n.) + ar- (in argon n.). Electronics. A type of low-voltage discharge tube filled with argon and having a heated cathode of thoriated tungsten, used as a rectifier for currents of a few amperes. More fully tungar rectifier. (A proprietary name in the U.S.) ΘΚΠ the world > matter > physics > electromagnetic radiation > electricity > electrical engineering > rectifier > [noun] > types of Ferranti1892 mercury arc rectifier1906 mercury vapour rectifier1908 Tungar1917 1917 Official Gaz. (U.S. Patent office) 4 Dec. 270/1 General Electric Company... Tungar... Rectifying apparatus. Claims use since October, 1916. 1919 J. A. Fleming Thermionic Valve 84 That type of valve..which comprises a tungsten wire hot cathode and a tungsten plate cold anode, the bulb being filled with rarefied argon... This particular modification of the Fleming valve has been called a Tungar Rectifier. 1919 J. A. Fleming Thermionic Valve 85 The six-ampere tungar. 1926 S. O. Pearson Dict. Wireless Terms 238 Tungar Rectifier, a thermionic rectifier of special construction for dealing with fairly large currents. 1935 A. R. Nilson & J. L. Hornung Pract. Radio Communication xv. 710 The Tungar battery charger..is a device for charging storage batteries from an alternating-current line. 1966 McGraw-Hill Encycl. Sci. & Technol. (rev. ed.) VI. 61/1 Hot-cathode gas tubes... Three representative types may be distinguished, (1) the Tunger..; (2) the phanotron; and (3) the thyratron. This entry has not yet been fully updated (first published 1986; most recently modified version published online June 2018). < n.1917
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