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CV2983 / 3V4 pentode

Size This valve measures 53x17mmm overall and has a B7G base.


Filament voltage 1.4V
Filament current 100mA
Max anode voltage 100V
Max screen voltage 100V
Max cathode current 13mA
Mutual conductance * 2.15mA/V
Anode current * 9.5mA
Screen current * 2.2mA
Capacitances (unscreened)
Cag 0.4pF
Cin 5.5pF
Cout 3.8pF

*: At Va=Vg2=90, Vg1=-4.5

At a filament voltage of 1.4V, pins 1 and 7 are connected together as filament +ve, and the filament centre tap connected to filament -ve.

Pin Function
1 Filament -ve
2 Anode
3 Screen grid
4 n/c
5 Filament centre tap
6 Control grid
7 Filament +ve

This file was last modified 23:10:25, Wednesday February 23, 2022