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GS-23B

POWER TETRODE

The GS-23B power tetrode generates and amplifies power at up to 1,000 MHz in RF equipment.

GENERAL
Cathode: indirectly heated, oxide-coated.
Envelope: metal-ceramic.
Cooling: forced air.
Height: at most 120 mm.
Diameter: at most 90 mm.
Mass: at most 1.1 kg.

gs-23b(1)1.jpg

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

BASIC DATA
Electrical Parameters
Heater voltage, V 6.3
Heater current, A 5.3-6.1
Mutual conductance (at anode voltage 1.25 kV, grid 2 voltage 400 V, anode current 0.9 A), mA/V 40-70
Power gain (at anode voltage 2.1 kV, grid 2 voltage 400 V, anode current 1 A, heater voltage 5.7 V), at least 8
Cutoff voltage (at anode voltage 1.25 kV, grid 2 voltage 400 V, anode current 10 mA), V, at most 65
Interelectrode capacitance, pF:
input 28-38
output 9.5-13.5
transfer, at most 0.025
Cathode heating'time, s, at most 210
Output power (at anode voltage 2.1 kV, grid 2 voltage 400 V, anode current 1 A, heater voltage 5.7V),W, at least 500
Output power over 1,000 h of service, at least 400

gs-23b(2)1.jpg
Averaged Characteristic Curves:
Uf = 6.3V; Ug2 = 300V;
_______ anode;
_ _ _ _ grid 2-anode;
—— • —— Pa max

gs-23b(2)2.jpg
Averaged Characteristic Curves:
Uf = 6.3V; Ug2 = 400V;
_______ anode;
_ _ _ _ grid 2-anode;
—— • —— Pa max

gs-23b(2)3.jpg
Averaged Characteristic Curves:
Uf = 6.3V; Ug2 = 500 V;
_______ anode;
_ _ _ _ grid 2-anode;
—— • —— Pa max

Limit Operating Values
Heater voltage, V 5.7-7.0
Anode voltage, kV:
DC voltage with tube cut off 3.0
peak value 3.5
Grid 2 voltage (DC), V 500
Negative grid 1 voltage (DC), V 150
Cathode current (r.m.s. value), A 1.9
Dissipation, W:
anode 1.5x103
grid 2 12
grid 1 1.5
Operating frequency, MHz 1,000
Temperature at anode, stem and seals, °C 200

gs-23b(3)1.jpg
Averaged Anode-Grid Characteristic Curves:
Uf = 6.3V; Ua = 1.5kV

gs-23b(3)2.jpg
Averaged Grid-Anode Characteristic Curves:
Uf = 6.3V; Ug2 = 300V

gs-23b(3)3.jpg
Averaged Grid-Anode Characteristic Curves:
Uf = 6.3V; Ug2 = 400V

gs-23b(3)4.jpg
Averaged Grid-Anode Characteristic Curves:
Uf = 6.3V; Ug2 = 500V