Van Etten, Herbert B.

One of the four men involved in the development of the audion amplifier at the Federal Telegraph Company's Palo Alto laboratory in 1912, the other three being Lee de Forest, Cyril F. Elwell, and Charles V. Logwood. Van Etten was responsible for setting up the feed-back circuit that led to the discovery of the vibrating or oscillating capacity of the audion, a three-element vacuum tube.

From the description of Herbert B. Van Etten papers, 1912-1947. (Unknown). WorldCat record id: 122553095

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