Recommended · for some experience
DON'T BUY this HV Generator! Build this one instead....please
Why people recommend it
GreatScott's look at cheap high voltage modules and a better home-built driver circuit, used as a reference schematic and for explaining how these transformers work.
Watch for: High voltage hazard; output is high frequency AC, not DC
In their words
Edit: The YouTube video mentioned in my question.
selvin on electronics.stackexchange.com, Nov 2023. CC BY-SA.
I'm following the circuit shown in this video ([video], minute 8:30 and on) using same components.
Luke__ on electronics.stackexchange.com, May 2023. CC BY-SA.