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Electronic Valve - Cunningham, Triode, Type C 301, circa 1921 Object Reg. No: ST 028670

Summary:
C-301 triode, branded by Cunningham, America in about 1921.
It was a general purpose valve.
Directly heated cathode. 5 Volt filament at 1 amp. Anode Votage 90 Volts.
Description:
Four pin base.
Acquisition Information:
Donation from G. Williams, 1973
Discipline: Technology
Dimensions: 110 mm (Length), 46 mm (Diameter)

More information

Tagged with: thermionic electron valves, radiotron
Themes this item is part of: Engineering Collection, Information & Communication Collection
Primary Classification: ELECTRONICS
Secondary Classification: Vacuum Technology
Tertiary Classification: general purpose
Inscriptions: GE trade mark on bulb.
On base: CUNNINGHAM AMPLIFIER/MODEL C-301
Manufactured For: E. T. Cunningham, United States of America, circa 1921

Manfactured by General Electric for RCA
References: For details of Cunningham Factory, please see Tyne, 'Saga of the Vacuum Tube'.

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