Virtual Valve Museum

Virtual Valve Museum

HomeFull List

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

CV1450 / 4228A triode

This valve measures 464x90mm overall.  

This is a water cooled power triode with a tungsten filament.

Filament voltage 21.7V (as marked)
Nom. filament current 41A
Max usable emission 6A
Max anode voltage 6kV
Max anode voltage for anode modulation 4kV
Max anode current 1.5A
Max anode dissipation 5kW
Max grid dissipation 100W
Max frequency for above ratings 3MHz
Cag 24pF
Cgf 25pF
Caf 3.1pF

Quarter view
The filament connections are the screw tags; the grid is the pin connector.

Closeup of glass section