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CV553 output beam tetrode

Size
 This valve measures 84x32mm overall and has an octal base 

Heater voltage 25V
Heater current 300mA
Anode voltage 200V
Anode current 50mA
Max screen current (zero signal) 2mA
Max screen current (max signal) 7mA
Max cathode current 125mA



Pin Function
1 n/c
2 Heater
3 Anode
4 Screen grid
5 Control grid
6 No pin
7 Heater
8 Cathode

CV553