This is a file from the Wikimedia Commons

File:Bigrid transmitter.jpg

From Wikipedia, the free encyclopedia
Jump to navigation Jump to search
Bigrid_transmitter.jpg(199 × 172 pixels, file size: 13 KB, MIME type: image/jpeg)

Summary[edit]

Description
English: Bigrid tetrode application as self-oscillating am transmitter
Date
Source https://archive.org/details/thermionictubesi00scotrich
Author John Scott-Taggart

Licensing[edit]

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, 1923. See this page for further explanation.

United States
Dialog-warning.svg
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

Click on a date/time to view the file as it appeared at that time.

Date/TimeThumbnailDimensionsUserComment
current17:48, 8 January 2015Thumbnail for version as of 17:48, 8 January 2015199 × 172 (13 KB)G4oepUser created page with UploadWizard
The following pages on the English Wikipedia link to this file (pages on other projects are not listed):

Global file usage

The following other wikis use this file:

  • Usage on da.wikipedia.org