But I won´t go through the basics, there are several good websites for that.
Hello, I´m Jan Ohlsson
I have a background in sound engineering, sound equipment design and installation, but I left that field a long time ago. But some general knowledge of electronics goes a long way for understanding tesla coil design. A tesla coil is on the surface a simple device, although difficult to comprehend in depth. But many coilers have researched the field, and there are a number of proven standard designs that could be used.
This is my second coil, I built a middle sized coil with a 110 mm secondary, powered by a stack of NST:s, about 15 years ago.
I live in Bromma, a part of Stockholm, Sweden. I run a small mechanic workshop for a living, after retiring from academic administrative work.