Summary
Low power output triode. 2.0 volt directly heated cathode.
Physical Description
Conical glass bulb, sectioned to show the internal elements of a small triode with a horizontal structure. American style 4 pin (UX) 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
Purchase
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Manufacturer
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Inscriptions
Bulb: 215/PATENTED/Osram Valve(indistinct) On display block: Brief description of the valve
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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
103 mm (Length), 46 mm (Outside Diameter)
Not including display block.
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