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The GK-9P triode is used for RF power amplification in stationary RF equipment.

Cathode: carbonized thoriated tungsten.
Envelope: glass-to-metal.
Cooling: evaporation for anode, forced air for envelope, stem and seals.
Height: at most 335 mm.
Diameter: at most 201 mm.
Mass: at most 13 kg.


Ambient temperature, °C -10 to+55
Relative humidity at up to 25 °C, % 98

Electrical Parameters
Filament voltage, V 8.3
Filament current, A 120-150
Mutual conductance (at anode voltage 1 kV and anode currents 2 and 12 A), mA/V 42-58
Gain coefficient (at anode voltages 4 and 8 kV and anode current 2.5 A) 24-32
Negative cutoff voltage, V, max.:
at anode voltage 10 kV and anode current 0.2 A 420
at anode voltage 12 kV and anode current 0.2 A 600
Interelectrode capacitance, pF, max.:
input 80
output 2
transfer 50
Output power (at filament voltage 6.3 V and anode voltage 10 kV), kW, at least 13

Limit Operating Values
Filament voltage, V 7.9-8.7
Anode voltage (DC), kV 12
Negative bias voltage, kV 1
Filament starting current, A 250
Dissipation, W:
anode 2.5x104
grid 500
Operating frequency, MHz 2
Temperature at envelope, stem and seals, °C 150

Averaged Characteristic Curves:
Uf = 8.3V
_____ anode-grid;
- - - grid

Averaged Characteristic Curves:
Uf = 8.3V
_____ anode;
_ _ _ grid-anode