https://tube.loping.net/videos/watch/1b734d27-18de-4ec4-93a9-15832421298f I explain the detailed operation of the electron gun in my DIY scanning electron microscope project. Sun, 12 Jul 2026 14:26:01 GMT https://validator.w3.org/feed/docs/rss2.html PeerTube - https://tube.loping.net https://tube.loping.net/lazy-static/avatars/8a56e488-2120-4649-a417-badf5893657b.png https://tube.loping.net/videos/watch/1b734d27-18de-4ec4-93a9-15832421298f All rights reserved, unless otherwise specified in the terms specified at https://tube.loping.net/about and potential licenses granted by each content's rightholder.