First light test and unfortunately under horrible conditions. We finished all the cabling and other small parts, bits and missing stuff in a days hectic work. In fact, by day, I mean that it that lasted all into the night. So we missed the opportunity of testing in darkness.
There was no tuning performed, input was limited by a smaller 6A variac, it was broad day light, foggy and wet day. The coil was just pushed outside of the garage as no cables was long enough to get it away from the tree.
Sparks are about 60-70 cm and we killed the LED christmas light chain that was in the tree, it was unplugged before we started.
Read the whole article on this coil at: https://kaizerpowerelectronics.dk/tesla-coils/kaizer-drsstc-iii/
Learn how to build your own Tesla coil. It can be a hard start to build a Tesla coil if you have no prior experience in doing so. I recommend that you watch my video on how I learned to build Tesla coils. I have also developed a good deal of tools that can help you design and check if your components can be used in a Tesla coil.