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CV2730 electrometer tetrode

 

Size This valve measures 45x10mm overall and has a B5J/F base

 

Filament voltage1.25V
Filament current13mA
Max anode voltage10V
Max cathode current300µA
Capacitances
Cag2.5pF
Cin0.3pF
Cout0.8pF

 

Pin Function
1Filament +ve
2Control grid
3Filament -ve
4Anode (red spot)
5Screen grid
 CV2730