Summary
Triode, used as a Class A amplifier, manufactured by Marconi Osram Valve Company, England. Introduced in 1931. Designed for low microphony, this valve was used as a low level amplifier and detector. 2 volt indirectly heated cathode.
Physical Description
Four pin American UV style base (nickel plated)
More Information
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Collection Names
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Collecting Areas
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Acquisition Information
Donation from Mr Finlayson (Fin) Stewart, 14 Jun 1973
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Manufacturer
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Inscriptions
Bulb: MADE & PATENTED IN ENGLAND/HLT2/MADE & PATENTED IN ENGLAND BY M. O. VALVE CO LTD/GEC
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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
101 mm (Length), 41 mm (Outside Diameter)
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References
Fin Stewart: History of GEC and the Marconi Osram Valve. PP 50 & 51 also P 79
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Keywords