GS24B
TRIODE
The GS24B triode is used as an oscillator and power amplifier in groundedgrid circuits for continuous operation with anode modulation.
GENERAL
Cathode: indirectly heated, oxidecoated.
Envelope: metalceramic with ring leads.
Anode cooling: forced air.
Height: at most 69.5 mm.
Diameter: at most 35 mm.
Mass: at most 80 g.
A  anode; C  grid; KP  cathode and heater; P  heater
OPERATING ENVIRONMENTAL CONDITIONS  
Vibration loads:  
frequencies, Hz  52,500 
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, %  9598 
BASIC DATA Electrical Parameters 

Heater voltage (AC or DC), V  6.3 
Heater current, A  0.381.38 
Cutoff voltage (negative), V  13 
Anode current, mA  60125 
Mutual conductance, mA/V  2030 
Penetration factor, %  0.81.5 
Warm up time, s  60 
Oscillator output power, W:  
in continuouswave generation  32 
with heater voltage 11.3 V  26 
interelectrode capacitance, pF:  
input  7.310.5 
transfer  2.93.7 
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  100400 
SelfSustained 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 
Averaged Characteristic Curves:
_____ anode;
_ _ _ gridanode
Averaged AnodeGrid Characteristic Curves:
_____ anodegrid;
_ _ _ grid