Thread: Making of a vacuum tube
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Old 07-18-2016, 05:53 PM
Mikado463 Mikado463 is offline
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Default Making of a vacuum tube
Not sure this one has been posted before, so here goes ......

https://www.youtube.com/watch?v=jNVZ8Pg3poo
Last edited by jdandy; 09-04-2017 at 11:06 AM. Reason: make link active
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