File:454622.png
No higher resolution available.
454622.png (481 × 428 pixels, file size: 41 KB, MIME type: image/png)
 | This is a file from the Wikimedia Commons. Information from its description page there is shown below. Commons is a freely licensed media file repository. You can help. |
Summary
| Description |
English: U.S. Patent 0,454,622 - System of Electric Lighting - 1891 June 23 - Apparatus devised for the purpose of converting and supplying electrical energy in a form suited for the production of certain novel electrical phenomena, which require currents of higher frequency and potential. It specifies an energy storage capacitor and discharger mechanism on the primary side of a radio-frequency transformer. This is the first-ever disclosure of a practical RF power supply capable of exciting an antenna to emit powerful electromagnetic radiation. |
||
| Date |
(patent filed april 1891 http://www.google.com/patents?id=wmBOAAAAEBAJ&printsec=abstract&zoom=4&source=gbs_overview_r&cad=0#v=onepage&q&f=false |
||
| Source | Originally uploaded at http://peswiki.com/index.php/Image:454622.png | ||
| Author | Nikola Tesla | ||
| Permission (Reusing this file) |
|
Licensing
|
This work is in the public domain in the United States because it was published (or registered with the U.S. Copyright Office) before January 1, 1929.
 Public domain works must be out of copyright in both the United States and in the source country of the work in order to be hosted on the Commons. If the work is not a U.S. work, the file must have an additional copyright tag indicating the copyright status in the source country.
Note: This tag should not be used for sound recordings. |
Original upload log
| date/time | username | resolution | size | edit summary |
|---|---|---|---|---|
| 10:44, 27 May 2007 | w:en:User:Reddi | 481×428 | 41 KB | Originally uploaded at: http://peswiki.com/index.php/Image:454622.png ==Description== U.S. Patent 0,454,622 - System of Electric Lighting - 1891 June 23 - Apparatus devised for the purpose of converting and supplying electrical energy in a form suite |
Image description page history
| link | date/time | username | edit summary |
|---|---|---|---|
| [1] | 21:06, 11 January 2008 | w:en:User:Vox Rationis | |
| [2] | 22:00, 28 December 2007 | w:en:User:Liftarn | |
| [3] | 10:45, 27 May 2007 | w:en:User:Reddi | |
| [4] | 10:44, 27 May 2007 | w:en:User:Reddi | (Originally uploaded at: http://peswiki.com/index.php/Image:454622.png ==Description== U.S. Patent 0,454,622 - System of Electric Lighting - 1891 June 23 - Apparatus devised for the purpose of converting and supplying electrical energy in a form suited ) |
![[1]](https://en.wikipedia.org/w/index.php?title=Image:454622.png&redirect=no&oldid=183707067){kind=link}
![[2]](https://en.wikipedia.org/w/index.php?title=Image:454622.png&redirect=no&oldid=180684778){kind=link}
![[3]](https://en.wikipedia.org/w/index.php?title=Image:454622.png&redirect=no&oldid=133828728){kind=link}
![[4]](https://en.wikipedia.org/w/index.php?title=Image:454622.png&redirect=no&oldid=133828658){kind=link}
File history
Click on a date/time to view the file as it appeared at that time.
| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 03:53, 15 January 2008 | | 481 × 428 (41 KB) | BetacommandBot | Transwiki approved by: w:en:User:Vox Rationis {{Information |Description={{en|Originally uploaded at: http://peswiki.com/index.php/Image:454622.png ==Description== U.S. Patent 0,454,622 - System of Electric Lighting - 1891 June 23 - Apparatus de |
File usage
The following page uses this file:
Global file usage
The following other wikis use this file:
- Usage on he.wikipedia.org
- Usage on it.wikipedia.org
