File:Tapping coherer.jpg: Difference between revisions

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current	18:54, 11 March 2022		733 × 556 (80 KB)	Maintenance script (talk \| contribs)	== Summary == Importing file

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 == Summary ==
-    {{
+Importing file
-    Information
-    |Description= Drawing of a tapping filings-coherer radio detector.
-    |Source= Appeared as an illustration in the article "Radio Detector Development" by H. Winfield Secor, published in the January, 1917 issue of "The Electrical Experimenter".
-    |Date= Estimated: [1917]
-    |Author= "The Electrical Experimenter" (Commercial publication.)
-    |Permission= "See licensing data below" (This illustration was published in the United States prior to January 1, 1923)
-    }}
-== Licensing/Copyright status ==
-{{PD}}