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File:Detecteur cristal 1.jpg

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Description
Français : détecteur à cristal
English: A cat's whisker detector, an antique electronic component used in crystal radio receivers from about 1906 to the 1940s. It consists of a mineral crystal, probably galena or silicon, embedded in solder in the metal cup at bottom. A fine wire attached to the adjustable mounting tab at top touches the surface of the crystal, forming a crude semiconductor diode. The function of this device in a crystal radio was to rectify the radio signal from the antenna, extracting the audio modulation signal from the carrier wave.
Date
Source Own workSelf-photographed
Author F1jmm

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This is a retouched picture, which means that it has been digitally altered from its original version. Modifications: picture manager bright. Modifications made by F1jmm.

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18 July 2010

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Date/TimeThumbnailDimensionsUserComment
current19:14, 9 July 2012Thumbnail for version as of 19:14, 9 July 20121,036 × 1,948 (1,019 KB)F1jmméclairage image
18:39, 18 July 2010Thumbnail for version as of 18:39, 18 July 20101,036 × 1,948 (1 MB)F1jmm{{Information |Description= détecteur à cristal |Source={{own}} |Date= 2010-07-18 |Author=F1jmm |Permission= |other_versions= }} Category:Cat's-whisker detector

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