GU100A
TRIODE
The GU100A triode is used as an oscillator
in stationary industrial RF heating generator circuits and as a power amplifier in stationary industrial transmitters.
GENERAL
Cathode: directly heated.
Envelope: metalceramic.
Cooling: forced water for anode, forced air for other elements of envelope.
Working position: upright with anode down.
Height: at most 250 mm.
Diameter: at most 102 mm.
Mass: at most 3 kg.
OPERATING ENVIRONMENTAL CONDITIONS  
Sinusoidal vibration:  
frequencies, Hz  135 
acceleration, m/s²  5 
Mechanical multiple impacts with a peak acceleration, of, m/s²  150 
High ambient temperature, °C:  
operating  55 
limiting  60 
Low ambient temperature, °C:  
operating  1 
limiting  60 
Relative humidity without moisture condensation at up to + 25 °C, %  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 value (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)  1 528 
Output power in selfexcitation mode, kW:  
at frequencies 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, 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 10MHz  0.5 
at 10150 MHz  0.45 
Dissipation, W:  
anode  6x10³ 
grid  400 
Operating frequency, MHz  150 
Envelope temperature at the hottest point, °C  175 
Averaged AnodeGrid Characteristic Curves:
U_{f} = 50 V;
_____ anodegrid;
   grid