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GK-5A

TRIODE

The GK-5A triode is used for amplification or generation at frequencies up to 26 MHz in stationary RF equipment.

GENERAL
Cathode: directly heated, carbonized thoriated tungsten.
Envelope: glass-to-metal.
Cooling: foced (water for anode, air for stem, air for envelope and seals).
Height: at most 790 mm.
Diameter: at most 178 mm.
Mass: at most 19 kg.

OPERATING ENVIRONMENTAL CONDITIONS
Ambient temperature, °C	-1O to +55
Relative humidity at up to +25 °C, %	98

BASIC DATA
Electrical Parameters

Filament voltage, V 17

Filament current, A 540-610

Mutual conductance (at anode voltage 10 kV and anode currents 6 and 8 A), mA/V 70-110

Gain coefficient (at anode voltages 8 and 10 kV and anode current 6 A) 32-48

Interelectrode capacitance, pF, at most:

input 220

output 5

transfer 100

Limit Operating Values

Filament voltage, V 18

Anode voltage, kV:

DC 10

peak value at 100-% anode modulation 20

Filament starting current, A 863

Dissipation, kW:

anode 200

grid 10

Operating frequency, MHz 26

Temperature at envelope and seals, °C 150

BASIC DATA Electrical Parameters
Filament voltage, V	17
Filament current, A	540-610
Mutual conductance (at anode voltage 10 kV and anode currents 6 and 8 A), mA/V	70-110
Gain coefficient (at anode voltages 8 and 10 kV and anode current 6 A)	32-48
Interelectrode capacitance, pF, at most:
input	220
output	5
transfer	100

Limit Operating Values
Filament voltage, V	18
Anode voltage, kV:
DC	10
peak value at 100-% anode modulation	20
Filament starting current, A	863
Dissipation, kW:
anode	200
grid	10
Operating frequency, MHz	26
Temperature at envelope and seals, °C	150