How to build a Tesla coilWelcome to the Tesla Coil Design, Construction and Operation Guide. I hope this guide will serve as a comprehensive step-by-step reference with easy to follow instructions. By following this guide you can build a Tesla coil capable of generating over 4' arcs of lightning. Design The guide will begin with a basic introduction to Tesla coils, how they operate and how to properly design one. This section mostly contains tedious equations and formulas used in the design ... Learn about Tesla Coils, electrical resonant transformers that produce high-voltage, low-current, high frequency alternating-current electricity. Discover their history, construction, safety precautions, and potential for wireless power transmission. A Tesla coil is an electrical transformer, or a device that raises or lowers voltage, which is a measure of electrical potential. A Tesla coil generates very high voltage, often in excess of one million volts. A Tesla coil is a high-voltage, low-current, high-frequency electrical resonant transformer circuit invented by Nikola Tesla in 1891. Learn how it works, how it differs from ordinary transformers, and how it is used for entertainment, education and special effects.