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.

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

Averaged Characteristic Curves:
U_f = 6.3V; U_g2 = 300V;
_______ anode;
_ _ _ _ grid 2-anode;
—— • —— P_{a max}

Averaged Characteristic Curves:
U_f = 6.3V; U_g2 = 400V;
_______ anode;
_ _ _ _ grid 2-anode;
—— • —— P_{a max}

Averaged Characteristic Curves:
U_f = 6.3V; U_g2 = 500 V;
_______ anode;
_ _ _ _ grid 2-anode;
—— • —— P_{a 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

Averaged Anode-Grid Characteristic Curves:
U_f = 6.3V; U_a = 1.5kV

Averaged Grid-Anode Characteristic Curves:
U_f = 6.3V; U_g2 = 300V

Averaged Grid-Anode Characteristic Curves:
U_f = 6.3V; U_g2 = 400V

Averaged Grid-Anode Characteristic Curves:
U_f = 6.3V; U_g2 = 500V

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