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GS-36B

TETRODE

The GS-36B tetrode is designed for power amplification in distributed-gain amplifiers and single-sideband signal amplifiers at frequencies up to 75 MHz, and for power amplification at up to 500 MHz in RF equipment.

GENERAL
Cathode: indirectly heated, oxide-coated.
Envelope: metal-ceramic.
Cooling: forced air.
Height: at most 67 mm.
Diameter: at most 51 mm.
Mass: at most 220 g.

gs-36b(2)1.jpg
gs-36b(2)2.jpg
1 - grid; 2, 4, 6, 8 - cathode; 3, 7 - heater; 5 - no connection; C1 - grid 1; C2 - grid 2; A - anode; I - contact surfaces

OPERATING ENVIRONMENTAL CONDITIONS
Vibration loads:
frequencies, Hz 1-80
acceleration, m/s² 49
Multiple impacts with acceleration, m/s² 147
Ambient temperature, °C -10 to +55
Relative humidity at up to +25 °C, % 98

BASIC DATA
Electrical Parameters
Heater voltage (AC or DC), V 6.3
Heater current, A 2.95-3.35
Mutual conductance (at anode voltage 1,000 V, grid 2 voltage 325 V, grid 1 voltage change 2.5 V, anode current 400 mA), mA/V 20-34
Anode current (at anode voltage 350 V, grid 2 voltage 325 V), mA, at least 400
Negative bias voltage (at anode voltage 1,000 V, grid 2 voltage 325 V, anode current 400 mA), V, (absolute value), at most 7-22
Negative cutoff voltage (at anode voltage 2,000 V, grid 2 voltage 325 V, anode current 20 mA), V (absolute value), at most 60
Interelectrode capacitance, pF:
input 18-30
output 5-9
transfer, at most 0.08
Output power under conditions of class AB1 (at anode voltage 2,000 V, grid 2 voltage 325 V, anode current at most 25 mA, grid 1 current 2x10-3 mA, frequency 0.1-1 MHz), W, at least 250
Output power under conditions of class (at 500 MHz, heater voltage 6.3 V, anode voltage 2,000 V, grid 2 voltage 325 V, anode current (DC component) 225 mA, grid 2 current (DC component) about 5 mA, grid 1 current (DC component) at most 0), W, at most 200
Relative level of combination components (at heater voltage 6.3 V, anode voltage 2,000 V, grid 2 voltage 325 V), dB, max.:
3rd-order components -30
5th-order components 30
Standard power in the mode of single-sideband signal amplification with low non-linear distortion (at heater voltage 6.3 V, anode voltage 2,000 V, grid 2 voltage 250 V, negative bias voltage 16 V, quiescent anode current 200 mA, anode current (DC component) about 280 mA, grid 2 current (DC component) about 7 mA, grid 1 current not above 0, relative level of combination components -37 dB of 3rd order and -40 dB of 5th order), W about 200
Output power under conditions of class AB1 over 1,000 h of service, W, at least 200

Limit Operating Values
Heater voltage (AC or DC), V 6.0-6.6
Anode voltage, V:
DC 2,100
instantaneous value 4,000
Grid 2 voltage (DC), V 325
Negative grid 1 voltage (DC, absolute value), V 60
Cathode current (DC component) under conditions of class B, mA 400
Dissipation, W:
anode 400
grid 2 8
grid 1 0.2
Operating frequency, MHz 500
Temperature at envelope (hottest point), °C 200

gs-36b(4)1.jpg
Averaged Anode-Grid and Grid Characteristic Curves:
Uf = 6.3V; Ug2 = 250V;
_____ Ia;
- - - Ig2

gs-36b(4)2.jpg
Averaged Anode-Grid and Grid Characteristic Curves:
Uf = 6.3V; Ug2 = 275V;
_____ Ia;
- - - Ig2

gs-36b(4)3.jpg
Averaged Anode-Grid and Grid Characteristic Curves:
Uf = 6.3V; Ug2 = 300V;
_____ Ia;
- - - Ig2

gs-36b(4)4.jpg
Averaged Anode-Grid and Grid Characteristic Curves:
Uf = 6.3V; Ug2 = 325V;
_____ Ia;
- - - Ig2

gs-36b(4)5.jpg
Averaged Grid-Anode Characteristic Curves:
Uf = 6.3V; Ug2 = 250V

gs-36b(4)6.jpg
Averaged Grid-Anode Characteristic Curves:
Uf = 6.3V; Ug2 = 275V

gs-36b(5)1.jpg
Averaged Grid-Anode Characteristic Curves:
Uf = 6.3V; Ug2 = 300V

gs-36b(5)2.jpg
Averaged Grid-Anode Characteristic Curves:
Uf = 6.3V; Ug2 = 325V

gs-36b(5)3.jpg
Averaged Anode Characteristic Curves:
Uf = 6.3V; Ug2 = 250V;
_____ Ia;
Pa max

gs-36b(5)4.jpg
Averaged Anode Characteristic Curves:
Uf = 6.3V; Ug2 = 275V;
_____ Ia;
Pa max

gs-36b(5)5.jpg
Averaged Anode Characteristic Curves:
Uf = 6.3V; Ug2 = 300V;
_____ Ia;
Pa max

gs-36b(5)6.jpg
Averaged Anode Characteristic Curves:
Uf = 6.3V; Ug2 = 325V;
_____ Ia;
Pa max