It has a Telefunken AD101 interstage coupled driver which is server by an input transformer with a 1:6 ratio. Powersupply is in a separate chassis and also being used for the Telefunken RV218 amplifier.
The meshplates look really nice, especially at night. Sound? Well, everything is yet new, so burning in at the moment, but already very promising! In a few weeks I will post an article about this.