Summary
Trode used as a power amplifier in radios, manufactured by Burndept Wireless Ltd. England in the mid 1920s
5 volt directly heated cathode.
Physical Description
European style 4 pin base
More Information
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Collection Names
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Collecting Areas
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Acquisition Information
Transfer from Unknown Source
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Manufacturer
Burndept Wireless Ltd., England, Great Britain, circa 1925-1926
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Inscriptions
Bulb: Burndept Super Valve/L525/RAL Base: Burndept Super Valve/Marked "CATHODE D. H."
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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
109 mm (Length), 46 mm (Outside Diameter)
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References
Website accessed on 18 Dec 2009: [Link 1]
[Book] Tyne, Gerald F. 1987. Saga of the Vacuum Tube., 1987, 391 Pages
[Book] Stokes, John. 1982. 70 Years of Radio Tubes and Valves., 1982, 210 Pages
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Keywords