File talk:Electron-Gun-with-Wehnelt-Cylinder.png

Licensing
@Guy vandegrift: Can you check the licensing on this file? If it's public domain, it doesn't need GFDL or CC-BY-SA. -- Dave Braunschweig (discuss • contribs) 19:16, 30 April 2023 (UTC)


 * I posted this image on Wikiversity about five years ago as a cropped version of the svg version of the image with the same name. I looked at c:Special:Contributions/Stefan.Richtberg and his talk page and have no reason to doubt that is contribution is legitimate. I edited the information in two ways:


 * 1)  was replaced by  since I didn't make the image.
 * 2) I included a link to the author's userpage on commons. --Guy vandegrift (discuss • contribs) 23:00, 30 April 2023 (UTC)Guy vandegrift (discuss • contribs) 22:30, 30 April 2023 (UTC)