A Novel UHF Television High-Power-Amplifier System

A novel type of power amplifier, especially developed for high-power UHF monochrome and color television transmitters, is described in this paper. The amplifier applies the type-6448 beam-power tubes for class-B service up to 15-KW peak of sync output with an amplification factor of 15 at 6 megacycles band-width (.5 decibel points) and, for class-C service with a power amplification factor of 30. The amplifier design is applied in the RCA TTU-12A transmitter.