Summary
410SG tetrode, made by Cossor, England.
It was used as a RF amplifier in radio receivers.
It has a 4.0 volt directly heated cathode.
Physical Description
Four-pin base with top cap.
More Information
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Collection Names
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Collecting Areas
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Acquisition Information
Purchase
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Manufacturer
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Inscriptions
Sticker on bulb: New Process Cossor 410S.G
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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), 46 mm (Outside Diameter)
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Keywords