Image / Three-tube amplifier, c. 1912

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Title: Three-tube amplifier, c. 1912
Creator: Unknown
Date Created and/or Issued: 1910-1915
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: An early 3-tube cascade amplifier, likely of de Forest make. The amplifier takes three tubular audions on the outside. A similar three-valve Audion Amplifier was developed and built by Federal Telegraph Company in 1912.
Type: image
Format: Black & White
Identifier: B7DE07C3-AAD7-4AD6-AF0D-165153729060
2003-1-332
Subject: Nineteen tens (LCSH)
Radio--Receivers and reception (LCSH)
Amplifiers (Electronics) (LCSH)
Audion

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