Spark-gap transmitter  

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Train wreck at Montparnasse (October 22, 1895) by Studio Lévy and Sons.
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Train wreck at Montparnasse (October 22, 1895) by Studio Lévy and Sons.

A spark-gap transmitter is a device that generates radio frequency electromagnetic waves using an intermittent electric discharge across a spark gap to produce radio frequency current oscillations in a tuned circuit. These are fed to an aerial to transmit a radio signal through the atmosphere.

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Unless indicated otherwise, the text in this article is either based on Wikipedia article "Spark-gap transmitter" or another language Wikipedia page thereof used under the terms of the GNU Free Documentation License; or on original research by Jahsonic and friends. See Art and Popular Culture's copyright notice.

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