VI318/32
PULSE RECTIFIER TUBE
The VI318/32 rectifier tube is used as a clipping, protective, charging and rectifying diode in stationary and mobile RF equipment
GENERAL
Cathode: indirectly heated, oxidecoated.
Envelope: glasstometal.
Anode cooling: forced air.
Height: at most 305 mm.
Diameter: at most 83 mm.
Mass: at most 600 g
OPERATING ENVIRONMENTAL CONDITIONS  
Vibration loads:  
frequencies, Hz  5600 
acceleration, m/s²  98 
Multiple impacts with acceleration, m/s²  343 
Ambient temperature, °C  60 to +85 
Relative humidity at up to +40 °C, %  98 
BASIC DATA Electrical Parameters 

Heater voltage, V  17 
Heater current, A  4.65.6 
Peak anode current (at anode voltage charge 5 kV), A, at least  18 
Anodecathode capacitance, pF, at most  12 
Peak anode current over 750 h of service, A, at least  14.5 
Limit Operating Values  
Heater voltage, V  15.518.5 
Reverse voltage, kV:  
pulse  32 
in rectification mode  30 
Peak anode current, A  18 
Anode current in rectification mode (peak value), mA 
1 
Anode current in rectification mode (average value), mA  200 
Anode dissipation, W  75 
Electrical charge of pulse, Aµs  50 
Pulse duration, µs  10 
Warm up time, s, at most  120 
Anode temperature, °C  150 
Averaged Anode Characteristic Curve:
U_{f} = 17V
Characteristic Curves Showing Cooling Air Flow Rate versus Anode Dissipation (at anode temperature T_{a} 150°C)