3kW or 3000 Watts power amplifie , in this article just share about the driver circuit PCB. For transistor booster / final transistor using 8 set SANKEN 2SC2922 and 2SA1216, wiring booster transistor see here : Booster / Final Transistor Amplifier.
3kW Power Amplifier Driver Circuit PCB Layout
3kW Power Amplifier is needed voltage supply about 90VDC-110VDC. Sorry i dont share this schematic circuit because it for sale.