File:Armature image from Modern Radio Practice by Charles Hayward page 47.png
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[edit]DescriptionArmature image from Modern Radio Practice by Charles Hayward page 47.png |
English: Image of a "Fort Wayne Armature partially wound, showing formed coils" from the book "Modern radio practice : a practical presentation of the principles of wireless communication, including simple and clear instructions on how to operate wireless devices and how to comply with government requirements for operators" |
Date | |
Source | Modern Radio Practice pg 47 https://archive.org/details/modernradiopract00hayw/page/47 |
Author | Hayward, Charles B. |
Licensing
[edit]Public domainPublic domainfalsefalse |
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.PD-1923Public domain in the United States//commons.wikimedia.org/wiki/File:Armature_image_from_Modern_Radio_Practice_by_Charles_Hayward_page_47.png |
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current | 22:18, 15 January 2020 | 1,656 × 1,960 (3.97 MB) | Nucleosynth (talk | contribs) | User created page with UploadWizard |
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File change date and time | 22:09, 15 January 2020 |
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1924
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48fb0decc901b6d2b0f85e27c31c29d8fa9a8450
4,162,047 byte
1,960 pixel
1,656 pixel
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