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.

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