Magn kopfhoerer



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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 31 March 2008(2008-03-31)
Source Bild Detektor-Kopfhoerer.png from [PeterFrankfurt]
Author Ulfbastel
(Reusing this file)


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