Summary
General purpose triode with a filament designed to be operated from a pair of dry cells. The filament was rated at 2.5 to 3 volts with a current of 60 mA. First released in 1923.
Marketed as: "Ediswan low temperature valve".
Manufacturer: Edison Swan Electric Co., England.
Physical Description
Tubular bulb with top exhaust tip, with European style 4 pin base with brass shell.
More Information
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Collection Names
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Collecting Areas
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Acquisition Information
Donation from P. H. McElroy, 22 Jul 1926
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Manufacturer
The Edison Swan Electric Co. Ltd., London, England, Great Britain, circa 1924
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Inscriptions
Bulb: (BBC licence logo) Base: EDISWAN/AR06/DULL EMITTING/3 VOLTS MAX Under shell: (ES logo)
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Brand Names
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Classification
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Category
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Discipline
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Type of item
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Overall Dimensions
103 mm (Length), 31 mm (Outside Diameter)
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