Unlike most of the tesla coils we have shown, this one doesn’t use a high current transformer from a neon sign. Instead, he’s gone the direction of vacuum tubes. He spent a total of about $125 ...

Arguably, the most tedious part of any Tesla coil build is winding the transformer. Getting that fine wire wound onto a suitable form, making everything neat, and making sure it’s electrically ...

most particularly of a special transformer, or coil, which is at the heart of the circuit's performance. Such a device first appeared in Tesla's US patent No. 454,622 (1891), for use in new ...

In addition to high frequencies, the coil could also generate extremely high voltages. With high frequencies, Tesla developed some of the first neon and fluorescent illumination. He also took the ...