Summary
Dull emitting general purpose triode. Released in 1924. Manufacturer: M.O. Valve Company, England.
Early type of triode employing cylindrical electrode structure.
2.8 volt directly heated cathode. Filament rating is 2.4 to 3.0 volt. Filament current is 0.06 amp. Amplication factor is 7.
Physical Description
Cylindrical bulb on 4 pin European style base with metal shell. Bulb is broken with parts missing.
More Information
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Collection Names
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Collecting Areas
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Acquisition Information
Donation from J. G. Du Faur, 17 Mar 1947
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Manufacturer
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Inscriptions
Base: DE3/Fil. Volts 2.4-3/Fil.amps0.06/(test mark)
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Brand Names
Marconi (Thermionic Electron Valves) , Osram (Thermionic Electron Valves)
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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
98 mm (Length), 31 mm (Outside Diameter)
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Keywords