Difference between revisions of "De Forest Audion"

(New page: '''''This article is a stub. You can help the GHN by expanding it.''''' United States. On 25 October 1906 Lee de Forest submitted a patent application on a "Device for amplifying feeble e...)
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Revision as of 21:47, 30 December 2008

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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.