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General Discussion / Tube Manufacturing
« on: December 27, 2011, 07:33:39 AM »
Since many here still use those obselete thermionic devices, thought it might be of interest :)
http://www.youtube.com/watch?v=8n4WVRKkmww&sns=fb
http://www.youtube.com/watch?v=8n4WVRKkmww&sns=fb