I am planning to scan materials I have on-hand and also provide links where possible to original sources to help the curious better understand what goes into building vacuum tubes. There is a lot of heresay, but not a lot of cold, hard facts about the materials and processes involved.
ASTM Standards on Materials For Electron Tubes & Semiconductors. Specifications, methods of testing. Second Ed. June 1962
I have scanned the chapters related to constructing a reference triode, some testing information, and information about the alloy used for the pins (trade named "Kovar" as best I can tell)
Materials Technology for Electron Tubes, January 1960. Walter H. Kohl, Sr engineering specialist, special tube operations Sylvania Electronic Products, Inc.
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