Summary
Triode, manufactured by Mullard in Great Britain, used for power amplification at audio frequency.
5.0 Volt directly heated cathode.
Physical Description
European style base with nickel plated brass shell.
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: Mullard radio valve/DFA1/(BBC licence stamp)
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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
118 mm (Length), 52 mm (Outside Diameter)
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Overall Dimensions
120 mm (Length), 50 mm (Outside Diameter)
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Keywords