File:Tesla lab coil1.jpg
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Size of this preview: 470 × 600 pixels. Other resolutions: 188 × 240 pixels | 579 × 739 pixels.
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Captions
Captions
A Tesla coil, an electric device that produces high voltages, built by Nikola Tesla around 1895, showing sparks shooting from the top of the cone shaped coil
Summary
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| Description |
An early Tesla coil constructed by Nikola Tesla at his laboratory at 35 South Fifth Ave., New York around 1895. The voltage produced at the top terminal of the conical secondary coil may have been several hundred thousand volts, at a frequency around 1 MHz, producing a purple brush discharge, which is slightly exaggerated in this time exposure. At left are glass plate capacitors that formed the tuned circuit with the primary of the coil. |
| Date | |
| Source | Thomas Commerford Martin, "Tesla's Oscillator and Other Invetions" in Century Magazine, The Century Co., New York, Vol. 49, No. 6, April 1895, p. 932, fig. 15 |
| Author | Thomas Commerford Martin. The accompanying article (p. 916) says photos were taken by Tonnele and Co. |
Licensing
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This media file is in the public domain in the United States. This applies to U.S. works where the copyright has expired, often because its first publication occurred prior to January 1, 1930, and if not then due to lack of notice or renewal. See this page for further explanation.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 01:35, 16 April 2015 | | 579 × 739 (103 KB) | Chetvorno (talk | contribs) | Higher resolution version |
| 05:11, 28 September 2006 |  | 294 × 394 (41 KB) | Kolgreen (talk | contribs) |
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