GK-9B

TRIODE

The GK-9B triode is a RF power amplifier with an output power of up to 30 kW at frequencies up to 2 MHz, designed for use in stationary RF equipment.

GENERAL
Cathode: directly heated, carbonized thoriated tungsten.
Envelope: glass-to-metal.
Cooling: forced air.
Height: at most 338 mm.
Diameter: at most 218 mm.
Mass: at most 12 kg.

BASIC DATA 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 (at anode voltage 10 kV and anode current 0.2 A), V, at most	420
Interelectrode capacitance, pF, max:
input	80
output	2
transfer	50

Limit Operating Values
Filament voltage, V	7.9-8.7
Anode voltage (DC), kV	12
Filament starting voltage, A	250
Dissipation, W:
anode	1.8x104
grid	500
Operating frequency, MHz	2
Temperature at envelope, stem and seals, °C	150
Envelope temperature at the hottest point, °C	250

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

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

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