File:De Forest xmtr broadcasting presidential election Nov 1916.jpg

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De_Forest_xmtr_broadcasting_presidential_election_Nov_1916.jpg (425 × 595 pixels, file size: 55 KB, MIME type: image/jpeg)

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Captions

De Forest transmitter broadcasting 1916 presidential election

Summary

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Description
English: One of the earliest radio broadcasting events, Lee De Forest's broadcast of the Wilson-Hughes presidential election returns from the De Forest laboratories, Highbridge, New York, November 7, 1916. An estimated 7,000 radio listeners within 200 miles of New York City heard election returns provided by the New York American newspaper offices, interspersed with patriotic music. The photo shows chief engineer Charles Logwood operating De Forest's 500 watt transmitter using two of his new high power "Oscillion" triode vacuum tubes (visible center) at a plate potential of 1500 volts. In the foreground is the phonograph, which played "The Star-Spangled Banner", "America", "Dixie", "Yankee Doodle" and other patriotic songs between returns.
Date
Source Retrieved April 9, 2015 from "Election Returns Flashed by Radio to 7,000 Amateurs" in Electrical Experimenter magazine, The Experimenter Publishing Co., New York, Vol. 4, No. 9, January 1917, p. 650 archived on http://www.americanradiohistory.com
Author Unknown authorUnknown author

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Public domain
Public domain
This media file is in the public domain in the United States. This applies to U.S. works where the copyright has expired, often because its first publication occurred prior to January 1, 1929, and if not then due to lack of notice or renewal. See this page for further explanation.
United States
United States
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current17:07, 18 September 2015Thumbnail for version as of 17:07, 18 September 2015425 × 595 (55 KB)Chetvorno (talk | contribs)User created page with UploadWizard

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