FU3069F Vacuum Electron tube equivalent to E3069 for hf dielectric
heating, induction heating
The tube can replace E3069.
The FU3069F is a ceramic-metal triode. It has thoriated tungsten
cathode and forced air cooling of plate.
The tube maximum plate dissipation is 5kW and maximum frequency
operation is 110MHz.
The tube is designed for oscillator in the industry high frequency
heating applications.
GENERAL CHARACTERISTICS
Electrical
Cathode....Thoriated Tungsten
Filament Voltage........12.6V
Filament Current.........31~38A
Transconductance.......13mA/V
Amplification Factor..........21
Interelectrode Capacitances:
Filament to Grid........20pF
Filament to Plate......0.8pF
Grid to Plate..........15pF
Mechanical
Overall Length...242mm
Overall Diameter.131mm
Net Weight.....2.8kg
Mounting PositionVertical, Plate Up or Down
COOLING
Cooling..Forced Air
Air Flow............. 8m3
/min
Static Pressure Loss.......... 392Pa
Maximum Envelope Temperature.... 250 degrees centigrade
MAXIMUM RATINGS
Frequency.....110 MHz
Filament Startup Current..52 A
Plate Voltage...........8 kV
Plate Current.....2.2 A
Grid Current.........500 mA
Plate Dissipation..5 kW
Grid Dissipation.......150 W
TYPICAL OPERATION
Plate Voltage.......8 kV
Plate Current.......2 A
Grid Current........350 mA
Grid Resistor.....3500 Ohm
Output Power.....11 kW
