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OT - diy vacuum tubes!



Someone on another list pointed out this video of an amateur radio  
operator who makes his own triode vacuum tubes from scratch!  17  
minutes long... just sit back and enjoy.

http://blog.makezine.com/archive/2008/01/make_your_own_vaccum_tube.html

Hope you don't mind me posting this to the list.  Folks that love that  
vintage tube sound might enjoy to see them being made.

-- Kevin