electron tube BW1608J2

Specifications

RF Power Triode BW1608J2F 
BW1608J2F is a water cooled, metal / 
ceramic power triode. It uses a thoriated 
tungsten filament and a coaxial structure, 
intended for use in industrial radio frequency 
heating as oscillator. Max. frequency: 
30MHZ, max plate dissipation: 50KW. 
Output power (class C oscillator, less 
driver): 118 kw 
ABRIDGED DATA 
Two RF power triodes of coaxial 
ceramic/metal construction, intended 
primarily for industrial service. They differ 
only in the method of anode cooling and 
anode dissipation. 
Anode cooling. . . . . . . . water; integral 
jacket 
Anode dissipation . . . . . . . . . .50 kWmax 
Anode voltage . . . . . . . . . 13 kVmax 
Frequency for full ratings . . . . .30 MHzmax 
Output power (class C oscillator, 
less drive) . . . . . . . . . . .118 kW 
GENERAL Electrical 
Filament . . . . . . . . . . . thoriated tungsten 
Filament voltage . . . . . ……12 V 
Filament current. . . . . . . . .178 A 
Surge filament current (peak) . 890 Amax 
Filament cold resistance . . . . 8.0 mO 
Peak usable cathode current . . 70 A 
Amplification factor 
(Va = 10 kV, Ia=5.0A) . . . 40 
Mutual conductance 
(Va = 10 kV, Ia=5.0A) . . . 80 mA/V 

Inter-electrode capacitances: 
grid to anode . . . . . . . . .47 pF 
grid to filament . . . . . . . .126 pF 
anode to filament . . . . . . .2.0 pF 
Mechanical 
Overall dimensions . . . . . . seeoutline drawings 
Net weight . . . . . . . . . . . 12Kg approx 
Mounting position . . . vertical, either way up