diy volt booster from a 4 volt battery to 50 volts! 

Hello friends!
in this video i make a simple volt booster
which can increase the voltage of a 4 volt battery to 50 volts.
You need just a ferrite core some wire
a mosfet IRF 540 N and a 2,2k resistor.
The diameter of the core is 27,5 mm.
Enjoy the video!