Virtual Valve Museum

Virtual Valve Museum

HomeFull List

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

CV2721 LF pentode

Size This valve measures 81x19mm overall and has a B9A base.

 

Heater voltage 6.3V
Heater current 1.05A
Max anode voltage 330V
Max anode voltage (Ia=0) 550V
Max peak anode voltage 7kV
Max screen voltage 330V
Max screen voltage (Ig2=0) 550V
Max anode dissipation 8.8W
Max screen dissipation 5W
Max total anode and screen dissipation 11W
Max cathode current 200mA
Heater cathode voltage 110V
Mutual conductance (Va=Vg2=250; Ia=32mA) 4.6mA/V
Capacitances
Cge 15pF
Cae 6pF
Cag max 1pF

 

Pin Function
1 i/c
2 Control grid
3 Cathode
4 Heater
5 Heater
6 i/c
7 i/c
8 Screen grid
9 Suppressor grid
TC Anode
CV2721