Summary
6SA7 heptode, made by Hygrade in the United States.
It was used as frequency changer in superheterodyne radio receivers.
It had a 6.3 volt indirectly heated cathode.
Physical Description
Metal tube. Octal base.
More Information
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Collection Names
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Collecting Areas
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Acquisition Information
Unknown Acquisition Method from Unknown Source, 17 Feb 1972
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Manufacturer
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Inscriptions
On metal tube: 6SA7 On other side of tube: Hygrade
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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
64 mm (Length), 32 mm (Outside Diameter)
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Keywords