Summary
One of the first indirectly heated valves made by the Marconi Osram Valve Company, released in 1929. It is a general purpose triode with an amplification factor (mu) of 40. The glass version was replaced by a 'Catkin' version in 1933 with the same type number and electrical characteristics.
4 V indirectly heated cathode.
Manufacturer: M. O. Valve Company, England.
Physical Description
Conical bulb (sectioned) on 5 pin UY style base, mounted on display block.
More Information
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Collection Names
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Collecting Areas
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Acquisition Information
Donation from Mr Richard H. Fowler M.Agr.Sc. - Institute of Applied Science of Victoria, 19 Jan 1948
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Manufacturer
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Inscriptions
Bulb: Osram Valve Pinch: HL Display block: (text)
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Brand Names
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Classification
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Type of item
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Overall Dimensions
121 mm (Height), 51 mm (Outside Diameter)
Dimensions of valve, excluding display block.
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