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- Q2554501 subject Q7486881.
- Q2554501 subject Q8411312.
- Q2554501 abstract "A Wehnelt cylinder (also known as Wehnelt cap, grid cap or simply Wehnelt) is an electrode in the electron gun assembly of some thermionic devices, used for focusing and control of the electron beam. It is named after Arthur Rudolph Berthold Wehnelt, a German physicist, who invented it during the years 1902 and 1903. Wehnelt cylinders are found in the electron guns of cathode ray tubes and electron microscopes, and in other applications where a thin, well-focused electron beam is required.".
- Q2554501 thumbnail Wehnelt_cap.svg?width=300.
- Q2554501 wikiPageWikiLink Q1128174.
- Q2554501 wikiPageWikiLink Q1231614.
- Q2554501 wikiPageWikiLink Q132560.
- Q2554501 wikiPageWikiLink Q1365473.
- Q2554501 wikiPageWikiLink Q176140.
- Q2554501 wikiPageWikiLink Q207340.
- Q2554501 wikiPageWikiLink Q215259.
- Q2554501 wikiPageWikiLink Q2980681.
- Q2554501 wikiPageWikiLink Q410318.
- Q2554501 wikiPageWikiLink Q72846.
- Q2554501 wikiPageWikiLink Q743.
- Q2554501 wikiPageWikiLink Q7486881.
- Q2554501 wikiPageWikiLink Q83913.
- Q2554501 wikiPageWikiLink Q8411312.
- Q2554501 comment "A Wehnelt cylinder (also known as Wehnelt cap, grid cap or simply Wehnelt) is an electrode in the electron gun assembly of some thermionic devices, used for focusing and control of the electron beam. It is named after Arthur Rudolph Berthold Wehnelt, a German physicist, who invented it during the years 1902 and 1903. Wehnelt cylinders are found in the electron guns of cathode ray tubes and electron microscopes, and in other applications where a thin, well-focused electron beam is required.".
- Q2554501 label "Wehnelt cylinder".
- Q2554501 depiction Wehnelt_cap.svg.