Quantity   Component name
4 × IRFP250 or similar Power mosfet
2 × Zener Single Diode, 12 V
2 × Fast / Ultrafast Diode, 400 V
2 × Resistor 10k ohm
2 × Resistor, 470 ohm
1 × capacitor 6microF/400V MKP
1 × Coil wund on a ferite core