Don't forget, the mayor part of tubes is...silicon oxide ! eric _____
From: neonixie-l@googlegroups.com [mailto:neonixie-l@googlegroups.com] On Behalf Of JohnK Sent: dinsdag 29 april 2014 9:40 To: neonixie-l@googlegroups.com; tubecollectorsassociat...@yahoogroups.com Subject: [neonixie-l] News Flash - Do you collect tubes or semiconductors? Many of your tubes probably should be in your semiconductor collection. And, if semiconductor is a dirty word, then in the bin ! Reference:- Kohl, Materials and Techniques for Electron Tubes A completely revised edition of Materials Technology for Electron Tubes., 1960, Reinhold. Page 551 describes Barium-Strontium-Calcium Oxide Cathodes, as "most widely used at the present time in receiving tubes, cathode ray tubes, picture tubes, and similar devices". Wait for it.... "Oxide cathodes are n-type semiconductors....". sorry guys, I hope there aren't too many tears out there, John K Australia. -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To unsubscribe from this group and stop receiving emails from it, send an email to neonixie-l+unsubscr...@googlegroups.com. To post to this group, send email to neonixie-l@googlegroups.com. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/34B51B6644494AFA9F074FB9F1BACF3 1%40compunet4f9da9 <https://groups.google.com/d/msgid/neonixie-l/34B51B6644494AFA9F074FB9F1BACF 31%40compunet4f9da9?utm_medium=email&utm_source=footer> . For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To unsubscribe from this group and stop receiving emails from it, send an email to neonixie-l+unsubscr...@googlegroups.com. To post to this group, send an email to neonixie-l@googlegroups.com. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/!%26!AAAAAAAAAAAYAAAAAAAAAPDddShx705MuX20yCpp0vvCgAAAEAAAAKyWtD8DXp5IgZMoD8yeeiEBAAAAAA%3D%3D%40zeelandnet.nl. For more options, visit https://groups.google.com/d/optout.
