I wrote: Just wanted to tie this thread to the one that Robin and I have been > discussing -- lanthanum hexaboride is a thermionic emitter [1]. >
Axil has also been part of that thread, and he was the one who inspired the idea of a thermionic emitter from a comment here [1]. Eric [1] http://www.mail-archive.com/vortex-l@eskimo.com/msg85966.html
