File:Coherer diagram.gif: Difference between revisions

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current	18:52, 11 March 2022		950 × 1,030 (16 KB)	Maintenance script (talk \| contribs)	== Summary == Importing file

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 == Summary ==
-{{
+Importing file
-Information
-|Description= Circuit diagram showing a filings-coherer radio receiver being used as a relay to operate a telegraph sounder.
-|Source= Figure 59 from page 86 of Principle of Wireless Telegraphy, written by George W. Pierce, and published by McGraw Hill Book Company, Incorporated, 1910.
-|Date= [1910]
-|Author= McGraw-Hill Book, Company, Incorporated.
-|Permission= See licensing data below. (This image is in the public domain, because it was published in the United States prior to January 1, 1923.
-|other_versions= If there is another file format or derivative of this same image on Citizendium, add the link here. If not, remove this text altogether and leave blank.
-}}
-== Licensing/Copyright status ==
-{{PD}}