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Description
Français : Poste a diode (OA85) pour l'écoute de la bande 520 kHz à 1620 kHz.
English: Modern crystal radio using a OA85 diode and piezoelectric earphone, receiving the 520 - 1620 kHz AM broadcast band. The two black wires (A and B) were the antenna and ground wires, one attached to a long wire antenna and the other to a water pipe or a stake driven into the ground to provide a return path for the antenna current to Earth.
Date
Source Own workSelf-photographed
Author F1jmm

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Date/TimeThumbnailDimensionsUserComment
current11:19, 28 March 2009Thumbnail for version as of 11:19, 28 March 2009480 × 640 (99 KB)F1jmm{{Information |Description= {{fr| Poste a diode pour l'écoute de la bande 520 kHz à 1620 kHz. }} |Source=travail personnel |Date= 2002 |Author= F1jmm |Permission= |other_versions= 1 }} Category:Crystal radios

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