Virtual Valve Museum

Virtual Valve Museum

HomeFull List

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

CV1839 high slope screened RF pentode

Size
This valve measures 65x20mm overall and has a B8A base

Heater voltage6.3V
Heater current350mA
Max anode voltage250V
Max screen voltage250V
Mutual conductance *9.0mA/V
Max anode dissipation **3.5W
Max screen dissipation **1.0W
Max heater/cathode voltage150V

*: At Va=Vg2=200V, Vg1=-1.8V
**: With grid cathode resistance not exceeding 10k ohms
PinFunction
1Heater
2Anode
3Internal screen
4Suppressor grid
5Screen grid
6Control grid
7Cathode
8Heater

CV1839