As a reminder, I am not able to reply to comments.
You can find most of the parts from old microwaves. BE VERY CAREFUL WITH MICROWAVE PARTS!!! THEY CAN EASILY KILL YOU!! This is a warning for your own safety. You may build this circuit at your own risk.
Also, this circuit resonates at 495khz.
The vacuum tube can be found on eBay for around $50 U.S. dollars currently without shipping cost.
Also, check out @T2D.SteveArcs and @marvswelt2587 . Both are great channels that have lots of info on VTTCs. I would recommend you to watch their videos for more guidance if you want to build this too.
Hopefully this tutorial has been helpful to you!
#experiment #highvoltahe #teslacoil #engineering #science