Summary
Sharp cut-off pentode used for audio and RF amplification. The 6J7 was first issued in a metal bulb in 1935. Glass versions followed soon after. This valve is a rebranded valve of American origin.
Physical Description
Metal bulb with top cap and octal base (7 pins present). A piece of wire has been soldered from the bulb and connected to pin 1.
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, 07 Sep 1971
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Manufacturer
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Inscriptions
Bulb: 6J7/MADE IN(illegible)/I(underlined) Previous Museum Reg #; 027873
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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
76 mm (Length), 32 mm (Outside Diameter)
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Keywords