Summary
Output beam tetrode designed for use in AC/DC radios, capable of producing close to 4 watts of output with a relatively low supply of 200 volts. Introduced as a metal valve in 1936, the GT version was released in 1939.
300mA (25V) indirectly heated cathode.
Possible manufacturer: RCA, U.S.A.
Manufactured for: Philips, Australia
Physical Description
Tubular glass bulb on octal base with 7 pins present.
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, 1981
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Manufactured For
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Manufacturer (Possible)
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Inscriptions
Bulb: 25L6/GT-G Paper label on base: 25L6/GT-G Base: PHILIPS/MADE IN U. S. A./J80
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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
82 mm (Length), 32 mm (Outside Diameter)
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Keywords