Beijing Phamitech Electronics 4CX15000A Power Tetrode 4CX15,000A is forced air cooled, metal / ceramic high power tetrode. Because of it’s special structure, high audio frequency working efficiency and low loss, it is mainly used as linear amplifier and AF power amplifier or oscillator. Max anode dissipation: 15KW, rated working frequency: 110MHZ, Max frequency: 225MHZ. Grid voltage Anode current, zero signal One tone anode current One tone grid 2 current Peak RF grid 1 voltage Anode dissipation.