Image / Cunningham solenoid tube

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Title: Cunningham solenoid tube
Creator: Atlantic-Pacific Radio Laboratories Co., Inc. (San Francisco, Calif.)
Date Created and/or Issued: 1923/ /
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: Label marked "34" "6.22.23" and "Ep76v". The original accession sheet from the Perham Foundation lists this as one of a collection of Moorhead solenoid tubes from de Forest; however, it is believed to be a tube made by AP Laboratories (San Francisco, Calif.) who bought out the Cunningham operations after his death.
Type: image
Identifier: F3A928C1-D4BB-43D0-A490-479472105245
2003-1-841
Subject: Vacuum-tubes
Nineteen twenties
Solenoids
San Francisco (Calif.)

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