File:Triode demonstration circuit.svg

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English: Circuit demonstrating how a triode vacuum tube works. The filament, heated by a separate current provided by a low voltage source Vf (typically 3-6V), heats the cathode above it. The cathode releases electrons into the tube. The plate is biased with a positive voltage (from 22 to several hundred volts). The electrons are attracted to the positive plate and flow to it through the grid, establishing a DC plate current. The input voltage vi applied to the grid controls the plate current; an increase increases the number of electrons allowed through the grid. The grid bias source V"g applies a negative voltage of a few volts to the grid, to ensure that it doesn't become positive on the positive input voltage swings, causing grid current
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Author Chetvorno

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I, the copyright holder of this work, hereby publish it under the following license:
Creative Commons CC-Zero This file is made available under the Creative Commons CC0 1.0 Universal Public Domain Dedication.
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current00:08, 26 June 2013Thumbnail for version as of 00:08, 26 June 2013631 × 472 (24 KB)Chetvorno (talk | contribs)User created page with UploadWizard

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