File:Mercury arc rectifier bulb.jpg
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Summary
| Description |
English: One of the first mercury arc rectifier bulbs, invented by Peter Cooper Hewitt in 1902. It consists of a partially evacuated glass bulb with a cathode electrode at the bottom consisting of a pool of the liquid metal mercury, and two graphite anode electrodes at top. The mercury arc rectifier was used into the 1970s to provide high power DC current to power industrial motors, electric locomotives, streetcars, and battery chargers. |
| Date | |
| Source | Downloaded August 22, 2013 from Nehemiah Hawkins (1917) Hawkins Electrical Guide No. 5: Questions, Answers, and Illustrations, Theo. Audel and Co. New York, p. 1511, fig. 2099 on Google Books |
| Author | Nehemiah Hawkins |
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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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File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 14:59, 3 May 2021 | | 418 × 739 (116 KB) | Materialscientist | FFT |
| 22:48, 22 August 2013 |  | 418 × 739 (87 KB) | Chetvorno | {{Information |Description ={{en|1=One of the first en:mercury arc rectifier bulbs, invented by en:Peter Cooper Hewitt in 1902. It consists of a partially evacuated glass bulb with a en:cathode en:electrode at the bottom con... |
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