We’ve all seen a million videos online with singing Tesla coils doing their thang. [Zach Armstrong] wasn’t content to just watch, though. He went out and built one himself! Even better,… ...

[Teodor] writes in with a unique Tesla coil he designed and built. ... The most critical component of his circuit, the relay, is just a standard normally-closed relay that is rated at 20A.

To investigate the electrical realm of high-frequency and high-voltage, Tesla invented an apparatus that pushed the limits of electrical understanding. None of the circuit's typical components ...

Who doesn't want their own Tesla coil? Particularly if you can get one that isn't incredibly dangerous or expensive to build. Well, this electrical savant built one in the 8th grade using vacuum ...

The Tesla coil schematic is virtually identical, with the exception of a metal toroid or “capacity hat” replacing the antenna and providing the capacitance for resonating the coil’s secondary. Spark ...

The Tesla coil requires one more thing: a capacitor to store charge and fire it all in one huge spark. The circuit of the coil contains a capacitor and a small hole called a spark gap.

Tesla’s Tower would be far more powerful than a small, experimental coil tested in a lab. Figure 1 shows the massive tower that was to be a new universal telecommunications system spanning the ...

Using a powerful electric force emitted by a Tesla coil, scientists at Rice University have made carbon nanotubes self-assemble to form a circuit linking two LEDs and then used the energy from ...

Designed as an educational development kit for experienced hobbyists, the 10-inch tall oneTesla music-playing Tesla coil is capable of producing artificial lightning arcs of almost two feet in length.