This is a ruggedised high-mu triode for use in proximity fuses (see here for further info)
*: At Va=100, Vg=0.
Connections: From the green dot: Anode, Filament +ve, Filament -ve, Grid
Fuse valves had a very short operational life. The EVS sheet for the CV122 states that the valves are required for use in receivers and for short period of operation. There is no requirement to replace them or for them to have a normal lifespan. They need a long life in storage.
There is no CV number marked on the valve. Again, the EVS sheet gives a clue as it excludes the section in K1001 that requires this to be marked. The valve carries the number 476 with an 'E' underneath.
This file was last modified15:53:27, Tuesday September 02, 2014