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DIY Triodes

As the comments indicate, this video really is amazing. I don't have the patience for this sort of thing, but I'm always in awe at craftsmen like this. And making vacuum tubes is becoming a lost art. I know that starting in the nineties, some of the more obscure types were available only from Russia. Fortunately, Sylvania and GE continued to make the most common ones.

Posted by Rand Simberg at January 09, 2008 12:06 PM
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