2C39A

A project for the future. Tube 2C39A is a planar triode that isn't meant to end up amplifying low-frequency audio signals. But having found a schematic, why not have ago.

The main obstacle here is the outline of the tube. They don't really fit into any standard sockets and I have had to find out a special arrangement. A fan is also needed as the tubes get very hot. But they look very special!