Finally the amp is working, but not ready.
The front faceplate on spacers will be designed and made soon and then some more mechanical work is necessary to install drive shafts via chain and sprocket to fit the layout of the turn counters etc.
Analog meters for power, anode current and phase will be on the front together with the push buttons for power on, standby, PTT (all parallel to a remote control box).
The oversized blower will be controlled via a variac and klixon.