File:Magn kopfhoerer.jpg
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| Description | magnetischer Kopfhörer aus der Zeit der Detektorempfänger, links die geöffnete Kapsel mit den beiden Polen und den darum angebrachten Spulen des Magentsystems, Mitte links die Eisenblechmembran der geöffneten Kapsel; sie liegt im montierten Zustand in geringem Abstand zu den Magnetpolen. Der Kopfhörer hat die damals übliche Impedanz von 2 kOhm |
| Date | |
| Source | Bild Detektor-Kopfhoerer.png from PeterFrankfurt |
| Author | Ulfbastel |
| Permission (Reusing this file) |
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This work has been released into the public domain by its author, PeterFrankfurt. This applies worldwide. In some countries this may not be legally possible; if so: |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 15:58, 31 March 2008 | | 508 × 437 (31 KB) | Ulfbastel (talk | contribs) | {{Information |Description=magnetischer Kopfhörer aus der Zeit der Detektorempfänger |Source=Bild de:image:Detektor-Kopfhoerer.png from user:PeterFrankfurt |Date=31. Mar. 2008 |Author=~~~ |Permission=PD |other_versions= }}{{PD}} |
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