This file is from Wikimedia Commons and may be used by other projects.
The description on its file description page there is shown below.
Summary
DescriptionPoste a diode 1.JPG
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.
I, the copyright holder of this work, hereby publish it under the following licences:
Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation Licence, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the licence is included in the section entitled GNU Free Documentation Licence.http://www.gnu.org/copyleft/fdl.htmlGFDLGNU Free Documentation Licensetruetrue
to share – to copy, distribute and transmit the work
to remix – to adapt the work
Under the following conditions:
attribution – You must give appropriate credit, provide a link to the licence, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible licence as the original.
{{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