All,Perhaps comparing Naudin's "tube" with an EIMAC 3CW20000A power triode may be instructive. Frolov/Moller probably obtained the Russian equivalent from St. Petersburg, where he lives, from Svetlana (also in St. Pete's). See http://www.g8wrb.org/data/Svetlana/pdf/3CW20000A7.pdf.
cheers - George Hathaway [EMAIL PROTECTED]
