Difference between revisions of "De Forest Audion"

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<p>'''''This article is a stub. You can help the GHN by expanding it.''''' </p>
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[[Image:1095 De Forest Protrait, copyright IEEE.jpg|thumb|left|Lee De Forest]] [[Image:Audion.jpg|thumb|right|Audion]]  
 
[[Image:1095 De Forest Protrait, copyright IEEE.jpg|thumb|left|Lee De Forest]] [[Image:Audion.jpg|thumb|right|Audion]]  
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<p>United States. On 25 October 1906 [[Lee De Forest|Lee de Forest]] submitted a patent application on a "Device for amplifying feeble electrical currents", which included the first form of the 3-electrode Audion. The device and its later improvements became the standard, allowing for inexpensive amplification of wireless voice signals among other amplification uses. It remained in widespread use until replaced by the transistor. </p>
 
<p>United States. On 25 October 1906 [[Lee De Forest|Lee de Forest]] submitted a patent application on a "Device for amplifying feeble electrical currents", which included the first form of the 3-electrode Audion. The device and its later improvements became the standard, allowing for inexpensive amplification of wireless voice signals among other amplification uses. It remained in widespread use until replaced by the transistor. </p>
  
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{{DEFAULTSORT:Audion}}
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[[Category:Computing and electronics]]
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[[Category:Electron_devices]]
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[[Category:Vacuum_technology]]
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{{Timeline
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|Date=10/25/1906
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|Priority=Electrical
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|Description=On 25 October 1906, American engineer Lee De Forest filed for a patent that included the first form of the 3-electrode Audion, which could function as an amplifier and oscillator as well as detector. This improvement on the Fleming Valve enabled the low-cost amplification of wireless voice signals.
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Latest revision as of 06:46, 23 November 2017

This article is a stub. You can help the ETHW by expanding it.

Lee De Forest
Audion

United States. On 25 October 1906 Lee de Forest submitted a patent application on a "Device for amplifying feeble electrical currents", which included the first form of the 3-electrode Audion. The device and its later improvements became the standard, allowing for inexpensive amplification of wireless voice signals among other amplification uses. It remained in widespread use until replaced by the transistor.