Pentagrid converter (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Pentagrid converter" in English language version.

refsWebsite
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pocnet.net

frank.pocnet.net

  • "7B8 Sylvania Type - Heptode converter - Physical Specifications" (PDF). Archived from the original (PDF) on 2016-03-04.
  • "7A8 Sylvania Type - Octode converter" (PDF). Archived from the original (PDF) on 2014-08-08.
  • https://frank.pocnet.net/sheets/046/e/EK3.pdf Manufacturer's marketing information.

r-type.org

web.archive.org

  • "7B8 Sylvania Type - Heptode converter - Physical Specifications" (PDF). Archived from the original (PDF) on 2016-03-04.
  • "7A8 Sylvania Type - Octode converter" (PDF). Archived from the original (PDF) on 2014-08-08.