[dustycat]

People who are interested in vacuum tube technology might enjoy the following youtube channel:

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

[jhallenworld]

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