Image / Gammatron 304-H triode

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Title: Gammatron 304-H triode
Creator: Heintz & Kaufman, Ltd
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: Mounted on ceramic stand for display. Stand has a corporate label on it for E. F. Johnson Co. (Waseca, Minn.). Number 10000 on back of tube. The 304H is a 300 watt general purpose triode.
Type: image
Identifier: A20445B1-F653-4ECC-9B82-981302452667
2003-1-735
Subject: Vacuum-tubes (LCSH)
Nineteen forties (LCSH)
Nineteen thirties (LCSH)
Heintz and Kaufman
Nineteen fifties (LCSH)

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