All glass body with septar transmitting base. With 600 V supply, as class C amplifier, one tube can deliver 100 W RF power with 1.25 W grid drive. Sibley gives Raytheon as only known manufacturer. RMA registration as 4D22 dates December 1950, the attached Raytheon datasheet dates Nov. 27, 1946.
NOT FOR EXPORT. Limited Quantity Available, New Old Stock (1975)