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GS-24B

TRIODE

The GS-24B triode is used as an oscillator and power amplifier in grounded-grid circuits for continuous operation with anode modulation.

GENERAL
Cathode: indirectly heated, oxide-coated.
Envelope: metal-ceramic with ring leads.
Anode cooling: forced air.
Height: at most 69.5 mm.
Diameter: at most 35 mm.
Mass: at most 80 g.

gs-24b(1)1.jpg
A - anode; C - grid; KP - cathode and heater; P - heater

OPERATING ENVIRONMENTAL CONDITIONS
Vibration loads:
frequencies, Hz 5-2,500
acceleration, m/s² 147
Multiple impacts:
acceleration, m/s² 735
number of impacts 10,000
Ambient temperature, °C -60 to +125
Relative humidity at +40 °C, % 95-98

BASIC DATA
Electrical Parameters
Heater voltage (AC or DC), V 6.3
Heater current, A 0.38-1.38
Cutoff voltage (negative), V 13
Anode current, mA 60-125
Mutual conductance, mA/V 20-30
Penetration factor, % 0.8-1.5
Warm up time, s 60
Oscillator output power, W:
in continuous-wave generation 32
with heater voltage 11.3 V 26
interelectrode capacitance, pF:
input 7.3-10.5
transfer 2.9-3.7

Limit Operating Values
Heater voltage (AC or DC), V:
maximum 13.85
minimum 11.35
Maximum anode voltage (DC), V 900
Dissipation, W:
anode 120
grid 2.5
Maximum cathode current (DC component), mA:
in prolonged operation 250
in operation for not above 100 h 270
Grid current (DC component), mA:
at wavelength below 60 cm 50
at wavelength above 60 cm:  
prolonged operation 80
operation for not longer than 100 h 90
Minimum cathode heating time, s 60
Maximum temperature, °C:
anode 200
grid ring 140
cathode ring 140
Maximum resistance in grid circuit, kOm 1

TYPICAL MODES OF OPERATION
Power Amplification
Anode voltage, V 350
Cathode current (DC component), mA 240
Grid current (DC component), mA 70
Oscillator output power, W 20
Operating frequency, MHz 100-400

Self-Sustained Oscillation
Anode voltage,V 800
Cathode current (DC component), mA 150
Grid current (DC component), mA 40
Oscillator output power, W 30
Operating frequency, MHz 600

gs-24b(3)1.jpg
Averaged Characteristic Curves:
_____ anode;
_ _ _ grid-anode

gs-24b(3)2.jpg
Averaged Anode-Grid Characteristic Curves:
_____ anode-grid;
_ _ _ grid