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CV1240 transmitting pentode

Size This valve measures 185x50mm overall and has a 4 pin T4 base.

This is a modified version of the PT15/VT140.

Filament voltage 4V
Filament current 2.45A
Max anode voltage 1250V
Max screen voltage 300V
Max anode dissipation 30W
Mutual conductance
(Va=1kV; Vg2=300V; Ia=40mA)
Cae 14.0pF
Cge 21.7pF
Cag max. 0.11pF


Pin Function
1 Control grid
2 Filament
3 Screen grid
4 Filament
TC Anode
Suppressor grid

This file was last modified 23:10:14, Wednesday February 23, 2022