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File:DeForest Pat 879532 Fig 1.png

DeForest_Pat_879532_Fig_1.png ‎(505 × 432 pixels, file size: 7 KB, MIME type: image/png)

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Description
Deutsch: de Forest Audion Schaltung
English: Circuit of one of the first vacuum tube radio receivers, invented by Lee De Forest in 1907, the inventor of the first amplifying vacuum tube, the Audion, from his 1907 patent. This is a grid-leak receiver, using a single Audion tube which both amplifies the radio signal and rectifies it, extracting the modulation (audio signal) from the radio frequency carrier wave.
Date
Source US Patent 879532 Fig. 1
Author Lee de Forest

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Public domain This image is in the public domain according to German copyright law because it is part of a statute, ordinance, official decree or judgment (official work) issued by a German authority or court (§ 5 Abs.1 UrhG).

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Transferred from de.wikipedia to Commons by Wdwd using CommonsHelper.

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  • 2010-01-22 23:22 AndreAdrian 505×432× (7120 bytes) {{Information |Beschreibung = de Forest Audion Schaltung |Quelle = US Patent 879532 Fig. 1 |Urheber = Lee de Forest |Datum = 1907 |Genehmigung = {{Bild-PD-Amtliches Werk}} |Andere Versionen = |Anmerkungen = }}

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current20:31, 28 June 2011Thumbnail for version as of 20:31, 28 June 2011505 × 432 (7 KB)File Upload Bot (Magnus Manske) (talk | contribs) {{BotMoveToCommons|de.wikipedia|year={{subst:CURRENTYEAR}}|month={{subst:CURRENTMONTHNAME}}|day={{subst:CURRENTDAY}}}} {{Information |Description={{de|de Forest Audion Schaltung}} |Source=Transferred from [http://de.wikipedia.org de.wikipedia]; transferr

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