Summary
General purpose triode for use in dry battery powered radios. 1.3 volt directly heated cathode. Used as a Class A amplifier.
Physical Description
Internal structure of a valve with its bulb removed showing the horizontal cylindrical structure common at the time it was made. European style 4 pin base with metal shell mounted on display block with a complete valve of the same type (ST 021545).
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
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Inscriptions
Display block: Description and brief data.
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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
78 mm (Length), 31 mm (Outside Diameter)
Not including display block
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Keywords