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CV2331 output pentode

Size This valve measures 31x7x5mm overall and has a 5-lead B5A base.


Filament voltage 1.25V
Filament current 10mA
Max anode voltage 45V
Max screen voltage 45V
Max cathode current 600µA
Mutual conductance * 180µA/V
Anode impedance * 400k ohms
Power output 950µW
Optimum anode load 100k ohms
Cag 0.25pF
Cin 2.5pF
Cout 2.4pF


Lead Function
1 Anode (red spot)
2 Screen grid
3 Filament -ve
4 Control grid
5 Filament +ve, suppressor grid

This file was last modified 23:10:22, Wednesday February 23, 2022