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Re:The Vacuum Tube’s Many Modern-Day Uses by dustycat on Thursday November 15, 2018 @08:33PM (#18465438)
People who are interested in vacuum tube technology might enjoy the following youtube channel:

https://www.youtube.com/user/MrCarlsonsLab

Re:The Vacuum Tube’s Many Modern-Day Uses by jhallenworld on Thursday November 15, 2018 @11:33PM (#18466435)
A counter channel (hilarious guy revives old TVs sitting out in the desert for 50 years). He's the voice of LA:

https://www.youtube.com/user/shango066/videos

Also, make your own tubes (in Texas while wearing a dress):

https://www.youtube.com/user/glasslinger/videos