Tesla coil
Bobina de Tesla
- Date
- 1891 · confidence high
- Place
- New York City, United States
- Credited to
- Nikola Tesla
- Field
- Matter & energy
What it is
Tesla patented on April 25, 1891 and publicly demonstrated on May 20 his air-core resonant transformer, capable of generating high-frequency, high-voltage, low-current alternating current. Elihu Thomson independently invented a similar circuit around the same time.
What it led to
- Spark-gap transmitters for wireless telegraphy (until the 1920s)
- Medical electrotherapy devices (violet ray)
- Vacuum system leak detectors
Built on
- Resonant air-core transformer circuits by Savary, Henry and Rowland