Image / Ad for de Forest audion detectors, Modern Mechanics, February 1915

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Title: Ad for de Forest audion detectors, Modern Mechanics, February 1915
Date Created and/or Issued: 1915/02/
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: Advertisement which appeared on page 50 in the advertising section of Modern Mechanics February 1915 issue, featuring the RJ4 Audion Detector and the Type RJ5 Audion Detector. "DeForest Audion Detectors Incomparably Superior to Any Other Known Type" available from DeForest Radio Telephone & Telegraph Co., 101 Park Avenue, New York. Stamped on reverse with Gerald F. J. Tyne's name and address. Note: The Perham Collection includes an RJ4 Audion Detector.
Type: image
Format: Black & White
Identifier: F0BAB835-5C05-4EE6-B314-570356677000
2003-59-276
Subject: Audion
Detectors
Radio--Receivers and reception (LCSH)
De Forest Radio Telephone & Telegraph Co
Advertisements (LCSH)

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