Summary
Tetrode, used for RF and IF amplification (Class A) in radio receivers. Manufactured by: Marconi Osram Company (UK). The name "Catkin" derives from the prefix "CAT" used on the Cooled Anode Transmitting Valves made by Osram, Catkin being a diminutive of it. They were both expensive and troublesome in production and were only produced for about two years. 4 volt indirectly heated cathode. Variable mu (remote cut-off) tetrode (remote control).
Physical Description
Five pin European style base with top cap. External anode construction with protective ventilated housing (Catkin).
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, 12 Jun 1973
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Manufacturer
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Inscriptions
Sticker on housing: (Osram CATKIN)
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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
125 mm (Length), 33 mm (Outside Diameter)
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References
Fin Stewart: History of GEC and the Marconi Osram Valve. PP 50-53, 79
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Keywords