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GU-39P-1

TETRODE

The GU-39P-1 tetrode is used as a power amplifier in stationary short-wave transmitters

GENERAL
Cathode: directly heated, carbonized thoriated tungsten
Envelope: glass-to-metal
Cooling: forced (evaporation for anode, air for stem and envelope)
Height: at most 298 mm
Diameter: at most 146 mm
Mass: at most 4 kg

gu-39p-1(2)1.jpg

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

BASIC DATA
Electrical Parameters
Filament voltage, V 6.3
Filament current, A 85-105
Mutual conductance (at anode voltage 3 kV, grid 2 voltage 1 kV, anode currents, 1.5 and 2 A), mA/V 20-28
Gain coefficient (grid 1 -grid 2) (at anode voltage 3 kV, grid 2 voltages 1 and 1.2 kV, anode current 1.5 A) 6-9
Anode current (at anode voltage 3 kV, grid 1 voltage -100 V, grid 2 voltage 1 kV), A 1
Negative bias voltage (at anode voltage 8.5 kV, grid 1 voltage 1.2 kV, anode current 0.5 A), V 130-190
Interelectrode capacitance, pF:
input, at most 90
output, at most 29
transfer, at most 0.7
grid 2-cathode, at least 50
Output power (at anode voltage 10 kV, operating frequency 30 MHz), kW, at least 13

Limit Operating Values
Filament voltage, V 6-6.6
Anode voltage (DC), kV 10
Negative grid 1 voltage, V 800
Grid 2 voltage (DC), kV 2
Filament starting current, A 150
Dissipation, W:
anode 1x104
grid 2 450
grid 1 200
Operating frequency (cutoff value), MHz 100
Temperature at envelope, stem and seals, °C 150

gu-39p-1(3)1.jpg
Averaged Anode Characteristic Curves:
Ua = 6.3V; Ug2 = 1kV

gu-39p-1(3)2.jpg
Averaged Anode Characteristic Curves:
Uf = 6.3V; Ug2 = 1.5kV

gu-39p-1(3)3.jpg
Averaged Characteristic Curves:
Uf = 6.3V; Ug2 = 1kV;
_____ grid 1-anode;
_ _ _ grid 2-anode

gu-39p-1(3)4.jpg
Averaged Characteristic Curves:
Uf = 6.3V; Ug2 = 1.5kV;
_____ grid 1-anode;
_ _ _ grid 2-anode

gu-39p-1(4)1.jpg
Averaged Anode-Grid Characteristic Curves:
Uf = 6.3V; Ug2 = 1.5kV

gu-39p-1(4)2.jpg
Averaged Anode-Grid Characteristic Curves:
Uf = 6.3V; Ug2 = 1.5kV

gu-39p-1(4)3.jpg
Averaged Grid 1 Characteristic Curves:
Uf = 6.3V; Ug2 = 1kV

gu-39p-1(4)4.jpg
Averaged Grid 2 Characteristic Curves:
Uf = 6.3V; Ug2 = 1.5kV

gu-39p-1(4)5.jpg
Averaged Grid 2 Characteristic Curves:
Uf = 6.3V; Ug2 = 1kV

gu-39p-1(4)6.jpg
Averaged Grid 2 Characteristic Curves:
Uf = 6.3V; Ug2 = 1.5kV