5868 is a glass transistor of the direct thermal carbonization of thorium-tungsten cathode,anode cooling method for natural cooling,the maximum anode dissipation power is 450KW,the maximum operating frequency is 100MHz,the output power is 1690KW.the tubes are mainly used for amplification and oscillation with the anodic AM amplifiers and RF power amplifiers and oscillators.the tube can be used interchangrably.TB4/1250 or the United States 5868 tube.
Note: generally under matched load can be naturally cooled,but the equipment must be well ventilated,if in a non-matched load,high pressure,high-frequency conditions required for forced air cooling,ventilation should be through the outlet from the tube at the bottom of under the previous air.