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Published on Feb 16, 2013
Aleksander runs "Prywatna WytwÃ³rnia Lamp" (PWL), a one-man DIY vacuum tube laboratory in Warsaw. The name translates to "Private Tube Manufacturer" - a pun on PWLR ("National Tube Manufacturer"), the first Polish tube manufacturer after WWII. There, he makes not only triodes, but also canal ray tubes, a RGB magic eye, several Crookes tubes, Geiger tubes, and many other incredibly amazing devices. This is serious stuff - he starts with raw materials like glass, metal and phosphor powders. At the end of the talk, he will also quickly present his DIY electron beam welder.