Image:Kristalldetektor.png
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[edit] Summary
A crystal detector in commercial form from the 1960's. The whisker is a self-bent copper wire spring. It is placed in a ball joint to provide maximum mechanical flexibility. The crystal was found on a trip in the mountains. The background is a paper with a 5 mm raster. Own photography by PeterFrankfurt 15:44, 25 February 2007 (UTC)
[edit] Licensing
Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, 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.
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- (del) (cur) 15:44, 25 February 2007 . . PeterFrankfurt (Talk | contribs) . . 1000×655 (960,388 bytes) (A crystal detector in commercial form from the 1960's. Own photography by ~~~~)
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