This wonderful video shows Claude Paillard, a French radio amateur (F2FO), making his own vacuum tubes (or thermionic valves). Just sit back and watch this delightful images.
You can find out more and get the original video file here:
paillard.claude.free.fr/
Негізгі бет Ғылым және технология Hand Made Vacuum Tubes by Claude Paillard
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