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File:Early electrolytic capacitor.jpg

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Early_electrolytic_capacitor.jpg (545 × 228 pixels, file size: 25 KB, MIME type: image/jpeg)

Summary

Description
English: An early electrolytic capacitor from 1914. It consists of two sheets of foil about 3 cm square separated by a fabric sheet, immersed in an electrolyte solution, sealed inside a glass tube, with electrodes attached to the foils at either end. It had a capacitance on the order of 2 microfarads. It was used as a decoupling condenser in a crystal radio.
Date before 1914
date QS:P,+1914-00-00T00:00:00Z/7,P1326,+1914-00-00T00:00:00Z/9
Source Downloaded August 1, 2013 from William Henry Marchant 1914 Wireless Telegraphy: A handbook for the use of operators and students, Whittaker and Co., New York, p. 144, fig. 117 on Google Books
Author Unknown authorUnknown author

Licensing

Public domain
Public domain
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.

United States
United States
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.

File history

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Date/TimeThumbnailDimensionsUserComment
current13:18, 6 August 2013Thumbnail for version as of 13:18, 6 August 2013545 × 228 (25 KB)ChetvornoUser created page with UploadWizard

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