Quantity   Component name
1 × IRFP260 Mosfet
1 × 300pF/4kV variable capacitor (from old Tube Radio)
1 × ESD Protection Device, TVS
1 × 12V/1W zener diode
1 × Rotary Potentiometer, 10 kohm
1 × 4n7/2kV
1 × Coils, Resistors, led