He's interested in the voltage levels.
I'd be interested in the schematics for the 1kw. I want to see how they float the tubes.
--Shane
KD6VXI
On the 5 kW unit the Final's effective Plate-to-Cathode voltage was 5 kV with an average plate current of 1.2 Amps.
The various stages are either transformer coupled or FO coupled for isolation.
Below are some schematics for the 1 kW transmitter.
The single 3-500Z modulator's grid is switched at -125 to +125V by the Audio/PDM circuit.
Lots of DC and AC feedback goes into the Audio/PDM circuit.
Phil - AC0OB