Fitxategi:Triode tube 1906.jpg

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Kameraren kokapena37° 37′ 07,01″ N, 122° 23′ 13,17″ W Kartographer map based on OpenStreetMap.Irudi hau eta gehiago beraien kokapenekin hurrengo lekuetan: OpenStreetMapinfo
Deskribapena
English: An early De Forest audion tube, the first electron tube that could amplify. The first triode, or tube with three electrodes, a filament, grid, and plate, the audion was invented in 1906 by American engineer Lee De Forest. The top metal electrode is the plate. The zigzag metal wire partly visible under it is the grid. The filament was originally under that, attached to the wires at left, but has burned out. As many Audions did, this model had two filaments (indicated by the four filament supply wires) so that when one burned out the "spare" could be used. The filament wires were attached to the screw terminal at left, while the grid and plate terminals were brought out through the right end of the glass envelope to the two wires at right. Tube belongs to History of San Jose, Perham Collection of Early Electronics.
Data GMT
Jatorria Photo by uploader, taken at The History of Audio: The Engineering of Sound, an exhibition of the San Francisco Airport Museums[1] in SFO Airport, Terminal 3 from 2006-09 to 2007-05.
Egilea Gregory F. Maxwell <gmaxwell@gmail.com> PGP:0xB0413BFA
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(Fitxategi hau berrerabiltzen)		 GFDL-1.2
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GNU head Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 only as published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License. 1.2 bakarrik

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sorrera data

12 azaroa 2006

coordinates of the point of view ingelesa

37°37'7.014"N, 122°23'13.175"W

Fitxategiaren historia

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Data/OrduaIruditxoaNeurriakErabiltzaileaIruzkina
oraingoa00:53, 21 abendua 200600:53, 21 abendua 2006 bertsioaren iruditxoa1.835 × 1.258 (194 KB)Yves-LaurentRétablissement de la version précédente
00:50, 21 abendua 200600:50, 21 abendua 2006 bertsioaren iruditxoa1.835 × 1.258 (194 KB)Yves-Laurent== Summary == {{Information |Description= Lee de Forest's triode tube (Audion) from 1906. Courtesy of History of San Jose, Perham Collection of Early Electronics. |Source= en:Triode_tube_1906.jpg : Photo by original uploader, taken at The History of
05:46, 13 azaroa 200605:46, 13 azaroa 2006 bertsioaren iruditxoa1.835 × 1.258 (194 KB)Gmaxwell{{Location dec|37.618615|-122.386993|scale:1000}} {{Information |Description=Lee de Forest's triode tube (Audion) from 1906. Courtesy of History of San Jose, Perham Collection of Early Electronics. |Source=Photo by uploader, taken at ''The History of Audi

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