File:Fessenden oscillator.jpg

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Fessenden_oscillator.jpg(400 × 327 pixels, file size: 66 KB, MIME type: image/jpeg)

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Summary

Description
English: Fessenden oscillator.
Date circa 1915
date QS:P,+1915-00-00T00:00:00Z/9,P1480,Q5727902
Source Own work
Author Daderot


Public domain
This work is in the public domain in the United States because it was published (or registered with the U.S. Copyright Office) before January 1, 1929.

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Note: This tag should not be used for sound recordings.PD-1923Public domain in the United States//commons.wikimedia.org/wiki/File:Fessenden_oscillator.jpg

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Creative Commons CC-Zero This file is made available under the Creative Commons CC0 1.0 Universal Public Domain Dedication.
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Date/TimeThumbnailDimensionsUserComment
current23:48, 30 June 2018Thumbnail for version as of 23:48, 30 June 2018400 × 327 (66 KB)wikimediacommons>DaderotUser created page with UploadWizard

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