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The Perham Collection of Early Electronics

at History San José

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      • De Forest’s Audion tube
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      • Heintz & Kaufman Gammatron
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      • Transmitters: Definition
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Heintz & Kaufman Gammatron Type 354

Heintz & Kaufman Gammatron 354

Heintz & Kaufman Gammatron Type 354, c. 1936 (Gift of Victoria Stone Velsey)

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Posted on June 5, 2017June 5, 2017Full size 1798 × 3973

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Published inHeintz & Kaufman Gammatron Type 354
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