It was a combination of the spark gap used to create the high frequency needed to drive the inductor coils, plus the 8+ inch sparks I was creating off the top o

It was a combination of the spark gap used to create the high frequency needed to drive the inductor coils, plus the 8+ inch sparks I was creating off the top of it. Also - I was able to light a 3' fluorescent bulb held at a distance of 7 feet away. No wires. I have remarkably tolerant parents. :)