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Description
Described in the Perham Foundation original accession worksheet as a Moorhead solenoid tube. No markings on tube. Believed to be a Cunningham solenoid tube made by AP after Cunningham's death.
Type
image
Identifier
0AD39654-B04B-42B0-ADB2-489077483261 2003-1-846
Subject
Vacuum-tubes Nineteen twenties Solenoids San Francisco (Calif.)
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