GM2B
TRIODE
The GM2B triode is used in electronic current and voltage regulators in RF equipment
GENERAL
Cathode: directly heated, carbonized thoriated tungsten.
Envelope: glasstometal.
Cooling: forced air.
Height: at most 167 mm.
Diameter: at most 100 mm.
Mass: at most 2.85 kg
OPERATING ENVIRONMENTAL CONDITIONS  
Vibration loads:  
frequencies, Hz  20200 
acceleration, m/s²  25 
Multiple impacts with acceleration, m/s²  98 
Linear loads with acceleration, m/s²  98 
Ambient temperature, °C  60 to +70 
Relative humidity at up to +25 °C, %  98 
BASIC DATA Electrical Parameters 

Filament voltage, V  6.3 
Filament current, A  2834 
Mutual conductance (at anode voltage 4 kV, anode currents 0.7 and 0.5 A), mA/V  1418 
Gain coefficient (at anode voltages 4 and 6 kV, anode current 0.7 A)  4862 
Interelectrode capacitance, pF:  
input, at most  25 
output, at most  4 
transfer, at most  25 
Mutual conductance over 1,000 h of service, mA/V, at least  13 
Limit Operating Conditions  
Filament voltage, V  5.76.9 
Anode voltage, kV:  
at anode dissipation 3.5 kW  5 
at anode dissipation 1 kW  8 
Grid voltage, V  500 
Filament starting current, A  50 
Dissipation, W:  
anode  3.5x10³ 
grid  50 
Warm up time, s, at least  30 
Averaged Anode Characteristic Curves:
U_{f} = 6.3V;
Averaged Characteristic Curves:
U_{f} = 6.3V;
_____ anodegrid;
_ _ _ grid