File:Inductor radio (crystal).JPG
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Original file (2,234 × 1,416 pixels, file size: 1.67 MB, MIME type: image/jpeg)
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Summary
| Description |
Français : Bobine de radio à cristal pour l'écoute de la bande hectométrique.
La self nid d'abeille de 180 micro Henry a un coefficient de surtension: Q de 50 a 80 dans la bande 0,5 MHz à 1,6 MHz. Pour un coefficient de surtension de Q de 50: la sélectivité est de 10 kHz pour 500 kHz et la sélectivité est de 30 kHz pour 1500 kHz. Pour un coefficient de surtension de Q de 80: la sélectivité est de 6 kHz pour 500 kHz et la sélectivité est de 20 kHz pour 1600 kHz. English: A tuning coil used in medium wave (MW) crystal radios. The coil is wound in a "basket weave" pattern to reduce losses due to proximity effect. It has a Q of 50 to 80 in the 0.5-1.6 MHz band. |
| Date | |
| Source | Own work • Self-photographed |
| Author | F1jmm |
Licensing
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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. A copy of the license is included in the section entitled GNU Free Documentation License. |
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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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File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 20:07, 18 July 2010 | | 2,234 × 1,416 (1.67 MB) | wikimediacommons>F1jmm | image coupée |
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