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Fleming Valve

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<p>[[Image:Fleming valve.jpg|thumb|right|Fleming Valve]] </p>
 
<p>[[Image:Fleming valve.jpg|thumb|right|Fleming Valve]] </p>
  
<p>16 November 1904. London, England. Beginning in the 1880s Professor [[John Fleming|John Ambrose Fleming]] of University College London investigated the [[Edison Effect|Edison effect]], electrical conduction within a glass bulb from an incandescent filament to a metal plate. In 1904 he constructed such a bulb and used it to rectify high frequency oscillations and thus detect wireless signals. The same year Fleming patented the device, later known as the 'Fleming valve.' A galvanometer could detect a weak wireless signal rectified by the [[Milestones:Fleming Valve, 1904|Fleming Valve]], which laid a foundation for electronics.</p>
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<p>16 November 1904. London, England. Beginning in the 1880s Professor [[John Fleming|John Ambrose Fleming]] of University College London investigated the [[Edison Effect|Edison effect]], electrical conduction within a glass bulb from an incandescent filament to a metal plate. In 1904 he constructed such a bulb and used it to rectify high frequency oscillations and thus detect wireless signals. The same year Fleming patented the device, later known as the 'Fleming valve.' </p>
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<p>[[Category:Components,_circuits,_devices_&_systems|Category:Components,_circuits,_devices_&amp;_systems]] [[Category:Measurement]] [[Category:Electromagnetic_measurements]]</p>
 
<p>[[Category:Components,_circuits,_devices_&_systems|Category:Components,_circuits,_devices_&amp;_systems]] [[Category:Measurement]] [[Category:Electromagnetic_measurements]]</p>

Revision as of 21:29, 19 July 2010

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Fleming Valve
Fleming Valve

16 November 1904. London, England. Beginning in the 1880s Professor John Ambrose Fleming of University College London investigated the Edison effect, electrical conduction within a glass bulb from an incandescent filament to a metal plate. In 1904 he constructed such a bulb and used it to rectify high frequency oscillations and thus detect wireless signals. The same year Fleming patented the device, later known as the 'Fleming valve.'