File:Tesla lab coil1.jpg
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Summary
| 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. |
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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, 1929, and if not then due to lack of notice or renewal. See this page for further explanation.
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This image might not be in the public domain outside of the United States; this especially applies in the countries and areas that do not apply the rule of the shorter term for US works, such as Canada, Mainland China (not Hong Kong or Macao), Germany, Mexico, and Switzerland. The creator and year of publication are essential information and must be provided. See Wikipedia:Public domain and Wikipedia:Copyrights for more details.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 01:35, 16 April 2015 | | 579 × 739 (103 KB) | Chetvorno | Higher resolution version |
| 05:11, 28 September 2006 |  | 294 × 394 (41 KB) | Kolgreen |
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