GU-62A

TRIODE

The GU-62A triode is used in self-excited oscillator and power amplifier circuits of RF equipment

GENERAL
Cathode: directly heated, carbonized thoriated tungsten
Envelope: glass-to-metal
Cooling: forced (water for anode, air for stem, envelope and seals)
Height: at most 430 mm
Diameter: at most 177 mm
Mass: at most 7 kg

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

BASIC DATA Electrical Parameters
Filament voltage, V	12
Filament current, A	105-135
Mutual conductance (at anode voltage 2 kV, anode currents 10 and 12.5 A), mA/V	50-70
Gain coefficient (at anode voltages 2 and 5 kV and anode current 5 A)	19-27
Anode current (at anode voltage 500 V and grid voltage 300 V), A, at least	10
Cutoff voltage (at anode voltage 8 kV, anode current 0.5 A), V, at most	420
Interelectrode capacitance, pF:
input, at most	80
output, at most	2.8
transfer, at most	60

Limit Operating Values
Filament voltage, V	10.8-12.6
Anode voltage (DC), kV:
at frequencies up to 30 MHz	10.5
at frequencies above 30 MHz	8
Filament starting current, A	210
Dissipation, kW:
anode	40
grid	1.8
Operating frequency, MHz	85
Temperature at envelope and stem, °C	180
Temperature at seals, °C	150

Averaged Characteristic Curves:
U_f = 12V;
_____ anode;
_ _ _ grid-anode;
— • — P_{a max}

Averaged Characteristic Curves:
U_f = 12V;
_____ anode;
_ _ _ grid