File:Tesla coil at Griffith Observatory LA.jpg
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Summary
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English: Large Tesla coil on display at Griffith Observatory in Los Angeles, CA. The coil itself is 48 in. high, 36 in. diameter at base narrowing to 18 in. diameter at top, with a 12 in. ball capacitive electrode mounted on top. This well-known coil is one of the oldest entertainment Tesla coils still in use. It was originally one of a pair of identical coils built in 1910 by Earle Ovington a manufacturer of high voltage medical coils who was a friend of Nikola Tesla. They were first displayed at the December Electrical Show at Madison Square Garden, New York City. At the show they were billed as the "Million Volt Oscillator". Installed in the balcony, on every hour the lights in the hall would dim for a spectacular display of 10 foot sparks between the two coils. Ovington gave the coils to Dr. Frederick Finch Strong, an occultist and one of the most well known proponents of electrotherapy, who used them to treat illnesses in his patients. In 1937 Strong donated them to the Griffiths Museum of the city of Los Angeles. The museum didn't have room to display them both and sold one of the coils. The other one, above, has been in continuous use ever since. It was estimated by a General Electric engineer that it produces 1.2 million volts. |
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This image, originally posted to Flickr, was reviewed on 15 November 2015 by the administrator or reviewer Rodrigolopes, who confirmed that it was available on Flickr under the stated license on that date. |
Licensing
This file is licensed under the Creative Commons Attribution-Share Alike 2.0 Generic license.
- You are free:
- to share – to copy, distribute and transmit the work
- to remix – to adapt the work
- Under the following conditions:
- attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
- share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.
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This image, originally posted to Flickr, was reviewed on 15 November 2015 by the administrator or reviewer Rodrigolopes, who confirmed that it was available on Flickr under the stated license on that date. |
File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 23:34, 14 November 2015 | | 3,152 × 4,432 (3.71 MB) | Chetvorno | {{Information |Description=Hollywood: Tesla Coil at Griffith Observatory |Source=[https://www.flickr.com/photos/elisfanclub/7186077858/ Hollywood: Tesla Coil at Griffith Observatory] |Date=2012-05-11 19:24 |Author=[https://www.flickr.com/people/8054727... |
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