phanotronn.

Brit.

/ˈfanətrɒn/, U.S.

/ˈfænəˌtrɑn/

Forms: 1900s– phanatron, 1900s– phanotron.

Origin: Of uncertain origin. Perhaps a borrowing from Greek, combined with English elements. Etymons: Greek ϕαν- , ϕαίνειν , -o- connective, -tron suffix.

Etymology: Origin uncertain; perhaps < ancient Greek ϕαν-, stem of ϕαίνειν to bring to light, cause to appear (see -phane comb. form) + -o- connective + -tron suffix. Originally a brand name.

Electronics.

A thermionic diode rectifier utilizing an arc discharge in mercury vapour or gas at very low pressure.

ΘΚΠ

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

rectifier1895

metal rectifier1927

phanotron1931

ignitron1933

squarer1965

1931 Thomas' Reg. Amer. Manuf., 1931–2 (ed. 22) Leading Trade Names 447 Phanotron vacuum tubes, General Electric Co., Schenectady, N.Y.

1933 J. H. Morecroft Electron Tubes viii. 193 In the Phanotron a low temperature filament must be used, because the mercury vapor has not enough density to prevent the evaporation of the filament.

1939 H. J. Reich Theory & Applic. Electron Tubes xii. 430 The construction of the type FG-166 phanatron.

1966 McGraw-Hill Encycl. Sci. & Technol. (rev. ed.) VI. 62/1 Typical phanotrons have average current ratings from 1·25–10 amperes and peak inverse voltage ratings of 10,000–22,000 volts.

2003 Re: Postal Disasters in alt.lasers (Usenet newsgroup) 12 July I have had three separate parcels with plasma tubes in (Phanatron, straight and U tube) all delivered intact from Oops.

This entry has been updated (OED Third Edition, December 2005; most recently modified version published online March 2022).

单词	phanotron
释义	phanotronn. Brit. /ˈfanətrɒn/, U.S. /ˈfænəˌtrɑn/ Forms: 1900s– phanatron, 1900s– phanotron. Origin: Of uncertain origin. Perhaps a borrowing from Greek, combined with English elements. Etymons: Greek ϕαν- , ϕαίνειν , -o- connective, -tron suffix. Etymology: Origin uncertain; perhaps < ancient Greek ϕαν-, stem of ϕαίνειν to bring to light, cause to appear (see -phane comb. form) + -o- connective + -tron suffix. Originally a brand name. Electronics. A thermionic diode rectifier utilizing an arc discharge in mercury vapour or gas at very low pressure. ΘΚΠ the world > matter > physics > electromagnetic radiation > electronics > electronic devices or components > [noun] > rectifier rectifier1895 metal rectifier1927 phanotron1931 ignitron1933 squarer1965 1931 Thomas' Reg. Amer. Manuf., 1931–2 (ed. 22) Leading Trade Names 447 Phanotron vacuum tubes, General Electric Co., Schenectady, N.Y. 1933 J. H. Morecroft Electron Tubes viii. 193 In the Phanotron a low temperature filament must be used, because the mercury vapor has not enough density to prevent the evaporation of the filament. 1939 H. J. Reich Theory & Applic. Electron Tubes xii. 430 The construction of the type FG-166 phanatron. 1966 McGraw-Hill Encycl. Sci. & Technol. (rev. ed.) VI. 62/1 Typical phanotrons have average current ratings from 1·25–10 amperes and peak inverse voltage ratings of 10,000–22,000 volts. 2003 Re: Postal Disasters in alt.lasers (Usenet newsgroup) 12 July I have had three separate parcels with plasma tubes in (Phanatron, straight and U tube) all delivered intact from Oops. This entry has been updated (OED Third Edition, December 2005; most recently modified version published online March 2022). < n.1931
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