Plasma Toroid – inductively-coupled radiofrequency plasma toroid in xenon gas

Oh, great - the plasma ring shown in this video is super stable!

The project submitted here is aiming for an all PCB version (most likely because it makes assembly a lot easier?) or in their own words (taken from the project page): The end goal is to have all electronics (including primary inductor) part of a single PCB running on USB-C-PD power, in a well-built and aesthetically attractive presentation.