File:Braunsche Telegraphiesystem 1898.jpg
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 11:31, 11 September 2014 | 2,377 × 1,350 (318 KB) | Drdoht | == {{int:filedesc}} == {{Information |Description= {{de|1=Schaltungsprinzip von Funkensender und Empfänger nach Braun 1898}} |Source=[http://www.radiomuseum.org/r/gesells_dr_sekundaerempfaenger_syste.html] |Author=Karl Ferdinand Braun (* 6. Juni 1850... |
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