GU13
BEAMPOWER TETRODE
The GU13 beampower tetrode is used for generation and power amplification in stationary RF equipment.
GENERAL
Cathode: directly heated, carbonized thorited tungsten.
Envelope; glass, with base.
Height: at most 191 mm.
Diameter: at most 65 mm.
Mass: at most 300 g.
I  alignment pin; 2, 3  cathode; 5  grid 2; 6  grid 1; 7  beamforming plates; A  anodetop cap
OPERATING ENVIRONMENTAL CONDITIONS  
Ambient temperature, °C  10 to +55 
Relative humidity at up to +25°C, %  98 
BASIC DATA Electrical Parameters 

Filament voltage, V  10 
Filament current, A  4.75.5 
Mutual conductance (at anode voltage 2 kV, grid 2 voltage 400 V, anode currents 60 and 80 mA), mA/V  3.14.9 
Anode current (at anode voltage 2 kV, grid 2 voltage 400 V, grid 1 voltage 35 V), mA  3065 
Interelectrode capacitance, pF:  
input  1319 
output  10.517.5 
transfer, at most  0.25 
Output power (at anode voltage 2 kV, grid 2 voltage 100 V, grid 1 AC voltage 184 V), W:  
at freguency 15 MHz, at least  220 
at frequency 30 MHz, at least  180 
Output power over 500 h of service (at 15 MHz), W, at least  198 
Limit Operating Values  
Filament voltage, V  9.510.5 
Anode voltage, kV  2 
Grid 2 voltage, V  400 
Dissipation, W:  
anode  100 
grid 2  22 
Operating frequency, MHz  30 
Averaged Anode Characteristic Curves:
U_{f} = 10V; U_{g2} = 0.3kV;
beamforming plates voltage U_{λο} is 0
Averaged Anode Characteristic Curves:
U_{f} = 10V; U_{g2} = 0.4kV;
__ . __ P_{a max}
beamforming plates voltage U_{λο} is 0
Averaged Grid 2Anode Characteristic Curves:
U_{f} = 10V; U_{g2} = 0.3kV;
beamforming plates voltage U_{λο} is 0
Averaged Grid 2Anode Characteristic Curves:
U_{f} = 10V; U_{g2} = 0.4kV;
beamforming plates voltage U_{λο} is 0
Averaged GridAnode Characteristic
Curves:
U_{f} = 10V; U_{g2} = 0.4kV;
beamforming plates voltage U_{λο} is 0
Averaged Characteristic Curves:
U_{f} = 10V; U_{g2} = 1 kV;
_____ anodegrid;
_ _ _ grid 2;
beamforming plates voltage U_{λο} is 0
Averaged Grid Characteristic Curves:
U_{f} = 10V; U_{a} = 1 kV;
beamforming plates voltage U_{λο} is 0