Virtual Valve Museum

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CV789 triode

Size This valve measures 111x30mm overall and has a 4 pin base.

See also CV2736 which is a matched pair of CV789s.

CV789 internals

Filament voltage 6.3V
Filament current 3A
Max anode voltage 2kV
Max anode current 75mA
Max anode dissipation 25W
Amplification factor 23
Cag 1.5pF
Cgf 1.7pF
Caf 0.3pF


Pin Function
1 Filament
2 n/c
3 n/c
4 Filament
SC Grid
TC Anode