File:Marconi and his wireless apparatus 1897.jpg

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Captions

Captions

Guglielmo Marconi with his first radio transmitter and receiver

Summary[edit]

Description
English: Publicity photo in a magazine of British-Italian radio entrepreneur Guglielmo Marconi with his early wireless radiotelegraphy transmitter and receiver, invented around 1895. On the left is his spark gap transmitter, consisting of a dipole antenna made of two brass rods with a spark gap between them, which transmits pulses of radio waves spelling out text messages in Morse code. On the right is his receiver, consisting of a coherer which rings a bell when it receives the dots and dashes of Morse code The bell and batteries are in the box.
Date
Source Retrieved 22 May 2018 from H. J. W. Dam, The New Telegraphy: An interview with Signor Marconi in The Strand magazine, George Newnes, Ltd., London, Vol. 13, No. 75, March 1897, p. 275 on Google Books
Author Unknown authorUnknown author

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This UK artistic or literary work, of which the author is unknown and cannot be ascertained by reasonable enquiry, is in the public domain because it is one of the following:
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