FU957F is a thorium-tungsten cathode of the direct thermal carbonization, the metal-ceramic triode,the anode cooling is forced air,the maximum anode dissipation power is 1500W,the maximum operating frequency is 110MHz,the output power of up to 2.8KW,the pipe used mainly for industrial frequency heating equipment for oscillation and radio equipment for amplification.the tube can insteadwith the United States 3CX1500D3 tube.
