GS23B
POWER TETRODE
The GS23B power tetrode generates and amplifies power at up to 1,000 MHz in RF equipment.
GENERAL
Cathode: indirectly heated, oxidecoated.
Envelope: metalceramic.
Cooling: forced air.
Height: at most 120 mm.
Diameter: at most 90 mm.
Mass: at most 1.1 kg.
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  5.36.1 
Mutual conductance (at anode voltage 1.25 kV, grid 2 voltage 400 V, anode current 0.9 A), mA/V  4070 
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  2838 
output  9.513.5 
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 2anode;
—— • —— P_{a max}
Averaged Characteristic Curves:
U_{f} = 6.3V; U_{g2} = 400V;
_______ anode;
_ _ _ _ grid 2anode;
—— • —— P_{a max}
Averaged Characteristic Curves:
U_{f} = 6.3V; U_{g2} = 500 V;
_______ anode;
_ _ _ _ grid 2anode;
—— • —— P_{a max}
Limit Operating Values  
Heater voltage, V  5.77.0 
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  1.5x10^{3} 
grid 2  12 
grid 1  1.5 
Operating frequency, MHz  1,000 
Temperature at anode, stem and seals, °C  200 
Averaged AnodeGrid Characteristic Curves:
U_{f} = 6.3V; U_{a} = 1.5kV
Averaged GridAnode Characteristic Curves:
U_{f} = 6.3V; U_{g2} = 300V
Averaged GridAnode Characteristic Curves:
U_{f} = 6.3V; U_{g2} = 400V
Averaged GridAnode Characteristic Curves:
U_{f} = 6.3V; U_{g2} = 500V