RF Power Triode  The BW1185J2 is a ceramic-metal triode of  coaxial structure, hyper vapor cooling anode  metal-ceramic triode. Mainly used as vibration  for the industry high frequency heating equipment. The anode dissipation power is  120kW, max. frequency is 30MHz  ABRIDGED DATA  The BW1185J2 is a water cooled power triode  of coaxial ceramic/metal construction,  intended primarily for industrial service. It has  an integral water jacket. Anode dissipation . . . . . . . ….…..120kWmax Anode voltage . . . . . . . . . .. …….16.8kV max Frequency for full ratings . ….…...30MHzmax Output power (class C oscillator,  less drive) . . . . . . . . . . . ……………..240 kW GENERAL Electrical Filament . . . . . . . . . . . thoriated tungsten Filament voltage (see note 1) . . …… .12.6 V Filament current. . . . . . . . . . ……….…380 A Surge filament current (peak)  (see note 2) . . . . . . . . …………. 2000 A max Filament cold resistance . . . . . ……. .3.6 mO Peak usable cathode current . . ……. . 175 A Amplification factor  (Va = 14 kV, Ia=10A) . . . . . . ………….40 Mechanical  Overall length……………………….. 419 mm  Overall diameter……………………. 190 mm  Net weight ……………………….……15.5kg  Mutual conductance  (Va = 14 kV, Ia=10A) . . . . ……. . 190 mA/V Inter-electrode capacitances: grid to anode . . . . . . . . . . ……….60 pF grid to filament . . . . . . . . . …… ..185pF anode to filament . . . . . . . . …… 3.0pF