triodeadj.n.

Brit.

/ˈtrʌɪəʊd/, U.S.

/ˈtraɪˌoʊd/

Etymology: < tri- comb. form + -ode comb. form².

†A. adj.

Telegraphy. Permitting or involving the transmission of three signals simultaneously. Obsolete.

ΘΚΠ

society > communication > telecommunication > [adjective] > types of system

multiplex1873

quadruplex1874

diplex1878

sextuplex1879

simplex1884

diode1886

hexode1886

tetrode1886

triode1886

octuplex1893

selective1906

quadded1914

multiplexed1964

muxed1991

1886 W. H. Preece in Jrnl. Soc. Telegraph-engineers & Electricians 15 231 A two-way mode of working, or a mode by which two messages are practically sent at the same time, will be diode working, three-way triode, four-way tetrode, five-way penthode, and-six way [sic] hexode.

B. n. Electronics.

A thermionic valve having three electrodes (also triode valve); also, an analogous semiconductor device with three terminals.

ΘΚΠ

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 > solid state physics > semiconductivity > semiconductor diode > [noun] > semiconductor triode

triode valve1948

triac1964

1919 W. H. Eccles in Electrician 18 Apr. 475/2 It seems very natural to call a vacuous space containing three electrodes a ‘tri-electrode’, or, for short, a triode.

1919 Nature 30 Oct. 178/2 The internal action of a triode valve.

1923 Mod. Wireless June 304/2 The amplifier used consisted of a single Western Electric triode.

1926 R. W. Hutchinson First Course Wireless viii. 140 The modern valve used in wireless and known as the triode consists of a tungsten filament and a plate, with a wire grid between them, the three being quite separate from each other.

1943 C. L. Boltz Basic Radio x. 155 The thing which is most striking about the triode is the effect of grid voltage on the anode current.

1948 Physical Rev. 74 230/1 (heading) The transistor, a semi-conductor triode.

1962 D. F. Shaw Introd. Electronics xi. 220 One of the most important uses of the triode valve is for the amplification of a voltage.

1962 J. H. Simpson & R. S. Richards Physical Princ. Junction Transistors viii. 191 The second type of avalanching triode..is obtained by connecting a base lead to either the n₁ or p₂ sections of the diode in Fig. 8.22.

1974 A. Van der Ziel Introd. Electronics ix. 216 The vacuum triode is hardly ever used as a small-signal amplifier except at high temperatures, but it is still the only way to develop very large powers.

Compounds

triode-hexode n. a valve containing a triode and a hexode in a single envelope, with separate anodes but a common cathode.

ΘΚΠ

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

1937 A. T. Witts Thermionic Valves Mod. Radio Receivers viii. 164 (caption) Circuit for the triode-hexode.

1952 E. Armitage Wireless Fund. xviii. 325 Sometimes the beat oscillator valve and the mixer valve are both inside a single glass envelope as in the triode~hexode.

triode-pentode n.

ΘΚΠ

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

1936 J. A. Moyer & J. F. Wostrel Radio Receiving & Television Tubes (ed. 3) iv. 156 (caption) Characteristic curves of triode section of triode-pentode tube.

This entry has not yet been fully updated (first published 1986; most recently modified version published online March 2022).

单词	triode
释义	triodeadj.n. Brit. /ˈtrʌɪəʊd/, U.S. /ˈtraɪˌoʊd/ Etymology: < tri- comb. form + -ode comb. form². †A. adj. Telegraphy. Permitting or involving the transmission of three signals simultaneously. Obsolete. ΘΚΠ society > communication > telecommunication > [adjective] > types of system multiplex1873 quadruplex1874 diplex1878 sextuplex1879 simplex1884 diode1886 hexode1886 tetrode1886 triode1886 octuplex1893 selective1906 quadded1914 multiplexed1964 muxed1991 1886 W. H. Preece in Jrnl. Soc. Telegraph-engineers & Electricians 15 231 A two-way mode of working, or a mode by which two messages are practically sent at the same time, will be diode working, three-way triode, four-way tetrode, five-way penthode, and-six way [sic] hexode. B. n. Electronics. A thermionic valve having three electrodes (also triode valve); also, an analogous semiconductor device with three terminals. ΘΚΠ 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 > solid state physics > semiconductivity > semiconductor diode > [noun] > semiconductor triode triode valve1948 triac1964 1919 W. H. Eccles in Electrician 18 Apr. 475/2 It seems very natural to call a vacuous space containing three electrodes a ‘tri-electrode’, or, for short, a triode. 1919 Nature 30 Oct. 178/2 The internal action of a triode valve. 1923 Mod. Wireless June 304/2 The amplifier used consisted of a single Western Electric triode. 1926 R. W. Hutchinson First Course Wireless viii. 140 The modern valve used in wireless and known as the triode consists of a tungsten filament and a plate, with a wire grid between them, the three being quite separate from each other. 1943 C. L. Boltz Basic Radio x. 155 The thing which is most striking about the triode is the effect of grid voltage on the anode current. 1948 Physical Rev. 74 230/1 (heading) The transistor, a semi-conductor triode. 1962 D. F. Shaw Introd. Electronics xi. 220 One of the most important uses of the triode valve is for the amplification of a voltage. 1962 J. H. Simpson & R. S. Richards Physical Princ. Junction Transistors viii. 191 The second type of avalanching triode..is obtained by connecting a base lead to either the n₁ or p₂ sections of the diode in Fig. 8.22. 1974 A. Van der Ziel Introd. Electronics ix. 216 The vacuum triode is hardly ever used as a small-signal amplifier except at high temperatures, but it is still the only way to develop very large powers. Compounds triode-hexode n. a valve containing a triode and a hexode in a single envelope, with separate anodes but a common cathode. ΘΚΠ 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 1937 A. T. Witts Thermionic Valves Mod. Radio Receivers viii. 164 (caption) Circuit for the triode-hexode. 1952 E. Armitage Wireless Fund. xviii. 325 Sometimes the beat oscillator valve and the mixer valve are both inside a single glass envelope as in the triode~hexode. triode-pentode n. ΘΚΠ 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 1936 J. A. Moyer & J. F. Wostrel Radio Receiving & Television Tubes (ed. 3) iv. 156 (caption) Characteristic curves of triode section of triode-pentode tube. This entry has not yet been fully updated (first published 1986; most recently modified version published online March 2022). < adj.n.1886
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