Tesla coils are beautiful examples of high voltage hardware, throwing sparks and teaching us about all kinds of fancy phenomena. They can also be quite intimidating to build. [William Fraser ...

[Niklas Fauth] had bought along a Tesla coil, but it was no ordinary Tesla coil. Instead of the usual tall coil and doughnut-shaped capacity hat it took the form of a stack of PCBs with spacers ...

Connect one end of the coil to one terminal of the knife switch. Connect the other terminal of the knife switch to the battery. Connect the end of the coil to the other terminal of the battery.