CV1660 / GPO VT82 triode
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This valve measures 105x45mm overall and has a B4 base. (the GPO
VT82 valve is bigger at 109x50mm) |
These are basically two constructions of the same valve but carrying different markings. These were specified
for the GPO (UK General Post Office)
Nom filament voltage |
4V |
Filament current |
150mA |
Max anode voltage |
150V |
Amplification factor * |
12 |
Anode impedance * |
5k ohms |
Capacitances |
Cag max |
12pF |
Cae max |
12pF |
Cge max |
12pF |
*: At Va=130, Vg=-4.
Pin |
Function |
1 |
Anode |
2 |
Grid |
3 |
Filament -ve |
4 |
Filament +ve |
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