jjansen wrote: Thanks for the explanation. Very nice to learn more about how things work!
No, unfortunately I don't have such a mosfet at hand. The current one is a IRF640, Vds is 200V, is this enough?
jjansen wrote: When I touch pin 10 with an insulated screwdriver it also reboots / crashes directly. With pin 9 this is not really the case (or less). But I am not sure if this is 'normal' behaviour when touching pin 9/10 of an ATmega