File:Reginald Fessenden and Fessenden oscillator, c. 1914.jpg

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Summary

Description	English: Reginald Fessenden and his Fessenden oscillator.
Date	circa 1914 date QS:P,+1914-00-00T00:00:00Z/9,P1480,Q5727902
Source	Own work
Author	Daderot

This work is in the public domain in the United States because it was published (or registered with the U.S. Copyright Office) before January 1, 1929.

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