GU100B
TRIODE
The GU100B triode is used as an oscillator in stationary industrial RF heating generators and as a power
amplifier in stationary industrial transmitters.
GENERAL
Cathode: directly heated.
Envelope: metalceramic.
Cooling: forced air.
Working position: upright with anode down.
Height: at most 265 mm.
Diameter: at most 150 mm.
Mass: at most 7 kg.
A  anode; C  grid; K1, K2  cathode
OPERATING ENVIRONMENTAL CONDITIONS  
Vibration loads:  
frequencies, Hz  135 
acceleration, m/s²  5 
Multiple impacts with a peak acceleration of m/s²  150 
Ambient temperature, °C  10 to +55 
Relative humidity at up to ±25 °C without moisture condensation, %  98 
BASIC DATA Electrical Parameters 

Filament voltage, V  5 
Filament current, A  6282 
Peak anode current (at filament voltage 5 V, anode voltage 0.5 kV, grid voltage 500 V, bias voltage 400 V), A, at least  6 
Negative cutoff voltage, absolute (at filament voltage 5 V, anode voltage 6 kV, anode current 0.1 A), V, at most 
350 
Gain coefficient (at filament voltage 5 V, anode voltages 0.5 kV and 2 kV, anode current 3A)  1528 
Output power in selfexcitation mode, kW:  
at up to 10 MHz (at filament voltage 5 V, anode voltage 8 kV, grid bias voltage 350 V, anode current 1.6 A, grid current 0.4 A)  10 
at 10150 MHz (at filament voltage 5 V, anode voltage 6 kV, grid bias voltage 350 V, anode current 1.35 A, grid current 0.32 A)  6.3 
Interelectrode capacitance in a groundedcathode circuit, pF:  
input, at most  50 
output, at most  1.2 
transfer,at most  30 
Limit Operating Values  
Filament voltage, V  5.3 
Anode voltage (DC), kV:  
at frequencies up to 10 MHz  8 
at frequencies 10150 MHz  6 
Negative bias voltage, absolute value, V  550 
Filament current (peak value), A  160 
Grid current (DC component), A:  
at frequencies up to 10 MHz  0.5 
at frequencies up to 10150 MHz  0.45 
Dissipation, W:  
anode  6x10³ 
grid  400 
Operating frequency, MHz  150 
Envelope temperature (except for anode) at the hottest point, °C  175 
Anode temperature, °C  200 
Averaged AnodeGrid Characteristic Curves:
U_{f} = 50V;
_____ anodegrid;
   grid