Virtual Valve Museum

Virtual Valve Museum

HomeFull List

This is an archive website. It will not receive any updates, additions or corrections.

CV1239 silica pentode

Size
This valve measures 360x100mm overall and has 6 connections

Filament voltage13.0V
Filament current40.0A
Max anode voltage10kV
Max screen voltage2kV
Max anode dissipation2.5kW
Total emission2A
Max cathode return current2A
Typical operating conditions
Anode voltage6kV
Screen voltage2kV
Control grid voltage-25V
Anode current60mA
Screen current2A
Mutual conductance3.0mA/V

The connections are given as: Suppressor grid, control grid and filament connections at one end; and anode and screen grid at the other.

Top quarter
Bottom quarter
CV1239