File:Émetteur à arc.JPG

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Émetteur_à_arc.JPG ‎(774 × 506 pixels, file size: 122 KB, MIME type: image/jpeg)

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Summary

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Description
English: Principle of the spark-gap emitter
Français : Principe de l'émetteur à arc .
Date
Source
Français : Le mémento de l’étudiant radio-électricien à l’usage des radio-techniciens et des candidats aux divers examens d’opérateur radio, Dunod, Paris, 1949. L. Péricone Officier radio de bord.
Author Image modifiée par F1jmm du livre: Le mémento de l’étudiant radio-électricien.
Other versions 2

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Public domain
This image (or other media file) is in the public domain because its copyright has expired and its author is anonymous.
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Note: In Germany and possibly other countries, certain anonymous works published before July 1, 1995 are copyrighted until 70 years after the death of the author. See Übergangsrecht. Please use this template only if the author never claimed authorship or their authorship never became public in any other way. If the work is anonymous or pseudonymous (e.g., published only under a corporate or organization's name), use this template for images published more than 70 years ago. For a work made available to the public in the United Kingdom, please use Template:PD-UK-unknown instead.
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This circuit image could be re-created using vector graphics as an SVG file. This has several advantages; see Commons:Media for cleanup for more information. If an SVG form of this image is available, please upload it and afterwards replace this template with {{vector version available|new image name}}.


It is recommended to name the SVG file “Émetteur à arc.svg”—then the template Vector version available (or Vva) does not need the new image name parameter.
This circuit image was uploaded in the JPEG format even though it consists of non-photographic data. This information could be stored more efficiently or accurately in the PNG or SVG format. If possible, please upload a PNG or SVG version of this image without compression artifacts, derived from a non-JPEG source (or with existing artifacts removed). After doing so, please tag the JPEG version with {{Superseded|NewImage.ext}} and remove this tag. This tag should not be applied to photographs or scans. If this image is a diagram or other image suitable for vectorisation, please tag this image with {{Convert to SVG}} instead of {{BadJPEG}}. If not suitable for vectorisation, use {{Convert to PNG}}. For more information, see {{BadJPEG}}.
 This is a retouched picture, which means that it has been digitally altered from its original version. Modifications: French version vectorised. Modifications made by F1jmm. The original can be found here: 23 avril 2008 à 17:28.

This file is an original and may be obsolete for general use, but is kept for historical or archival use. As such, it should not be modified or deleted except to correct upload or technical errors. Any modified versions or replacements of this image should be uploaded with a different file name.
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File history

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Date/TimeThumbnailDimensionsUserComment
current14:40, 4 September 2010Thumbnail for version as of 14:40, 4 September 2010774 × 506 (122 KB)F1jmm (talk | contribs)avec électrodes
16:50, 22 April 2008Thumbnail for version as of 16:50, 22 April 2008893 × 561 (44 KB)F1jmm (talk | contribs){{Information |Description= Principe de l'émetteur à arc . |Source= « œuvre personnelle » |Date= 22 Avril 2008 |Author= F1jmm |Permission= |other_versions= 2 }} Category:Telecommunications [[Category:Circuit images that should use vector graphi

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