Description

The 7T*9RB is a forced air cooled, ceramic-metal triode containing a thoriated tungsten cathode intended for use as an industrial oscillator. GENERAL CHARACTERISTICS Filament Voltage *2.6 V Filament Current *5 A Transconductance (Ia=0.8A) *3 mA/V Amplification Factor *1 Interelectrode Capacitance Grid Plate *3 pF Grid Cathode *8 pF Plate Cathode 0.7 pF Maximum Operating Frequency **0MHz Maximum Height **0 mm Maximum Diameter **7 mm Weight 2.8 kg Operation Position Vertical Cooling Forced Air Minimum Air Flow 7 m3/min Minimum Static Pressure **3 Pa Maximum In-coming Air Temprature *5 Maximum Anode Core and Seal Temprature **0 MAXIMUM RATING ABSOLUTE #**8alue RF Power Amplifier and Oscillator - Class C Telegraphy DC Plate Voltage 8 8 kV DC Plate Current 2 2 kV DC Grid Current 0.5 0.6 A Plate Dissipation Power ***0 ***0 W Grid Dissipation Power **0 **0 W TYPICAL OPERATION(Oscillation #**8alue) Plate Dissipation Power ***0 ***0 W Grid Dissipation Power **0 **0 W TYPICAL OPERATION(Oscillation #**8alue) DC Plate Voltage 6 7 8 kV DC Plate Current 1.6 1.8 1.8 kV Plate Output Power 7.1 9 *0 A DC Grid Current **0 **0 **0 mA Grid Impedance 3.5 3.5 4 kΩ