File:Coherer diagram.gif: Difference between revisions

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imported>Caesar Schinas
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== Summary ==
== Summary ==
 
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{{Image_Details
| description  = Circuit diagram showing a filings-coherer radio receiver being used as a relay to operate a telegraph sounder.
| author      = McGraw-Hill Book, Company, Incorporated.
| copyright    = McGraw-Hill Book, Company, Incorporated.
| source      = Figure 59 from page 86 of ''Principles of Wireless Telegraphy'', written by George W. Pierce, and published by McGraw Hill Book Company, Incorporated, 1910.
| date-created = 1910
| pub-country  =
| notes        =
| versions    =
}}
 
== Licensing/Copyright status ==
See licensing data below. (This image is in the public domain, because it was published in the United States prior to January 1, 1923.)
 
== Licensing/Copyright status ==
{{PD}}

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