Make: Online : Tube manufacturing in the 40's

Tube manufacturing in the 40's

Check out this excellent 1942 documentary film from RCA explaining the intricate manufacturing process involved in the production of vacuum tubes - even detailing differences between metal and glass encased units. And in case you missed it, be sure to check out Paillard's DIY version of the process. [via Matrixsynth]

[Oop - Gareth already posted this gem. Still it is ripe with awesomeness - be sure to view part 2 if you haven't already.]

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