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VT51 / 10E/10946 pentode

Size This valve measures 110x43mm overall and has a B5 base.


Filament voltage 2V
Filament current 200mA
Max anode voltage 150V
Max screen voltage 150V
Max anode dissipation 3W
Mutual conductance (A) 2.5mA/V
Anode current (B) 18mA
Optimum load resistance 6k ohms
Max operating frequency 7MHz
Cae 10.5pF
Cge 11.0pF
Cag 1.5pF

A: Va=100=Vg2=100, Vg1=0

B: Va=Vg2=150, Vg1=-9


Pin Function
1 Anode
2 Control grid
3 Filament -ve and suppressor grid
4 Filament +ve
5 Screen grid

This file was last modified 14:45:03, Tuesday September 02, 2014