Image / Lee de Forest and his first 4-stage audio amplifier, 1913

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Title: Lee de Forest and his first 4-stage audio amplifier, 1913
Creator: Unknown
Date Created and/or Issued: 1913/ /
Contributing Institution: History San Jose Research Library
Collection: History San Jose Online Catalog
Rights Information: Please contact the contributing institution for more information regarding the copyright status of this object.
Description: Lee de Forest and first 4-stage audio amplifier, Radio Telephone & Telegraph Company's Laboratory and Factory, Bronx, New York, 1913. This Audion exhibit was used to prove the value of the Audion for his 1913 federal trial for stock fraud. (He was acquitted, but several business partners were convicted.)
Type: Image
Identifier: 7159DD4D-FEDA-4EB1-8BB0-848073190474
2003-59-47
Subject: Audion
De Forest, Lee

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