The FU7069F is a ceramic-metal triode. It has thoriated tungsten cathode and forced air cooling of plate. it is an equivalent to 7T69RB.
The tube maximum plate dissipation is 4.5kW. 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...239mm
Overall Diameter.131mm
Net Weight.2.8kg
Mounting Position....Vertical, Plate Up or Down
COOLING
Cooling..Forced Air
Air Flow......... 7m3/min
Static Pressure Loss....... 343Pa
Maximum Envelope Temperature 250 degrees centigrade
MAXIMUM RATINGS
Continuous, , Intermittent
Frequency. 110, 110 MHz
Filament Startup Current. 53, 53 A
Plate Voltage.... 8, 8 kV
Plate Current.... 2, 2 A
Grid Current..... 500, 600 mA
Plate Dissipation.. 4.5, 5.5 kW
Grid Dissipation.... 150, 230 W
TYPICAL OPERATION
Continuous, , Intermittent
Plate Voltage........ 6, 7, 8 kV
Plate Current ... 1.6, 1.8, 1.8 A
Grid Current.. 250, 320, 210 mA
Grid Resistor. 3500, 3500, 4000 ohm
Output Power... 7.1, 9, 10 kW
