The CV397 is a disc seal triode. In use the valve would be fixed into a pair of cavities. The grid is a fine mesh and the anode is in close proximity to the grid. The central base connection is one side of the heater and the surrounding tube connection is the other end of the heater and the oxide coated cathode.

The CV397 and its commercial equivalent the DET24 date from the latter part of WW2. It could produce up to 10 Watts of output at frequencies up to 2 GHz.

The planar envelope is 20 mm in diameter, and is 66 mm tall.

This exhibit was last updated on 06 August 2005