77
you are viewing a single comment's thread
view the rest of the comments
view the rest of the comments
this post was submitted on 20 Mar 2024
77 points (94.3% liked)
Mildly Interesting
17293 readers
713 users here now
This is for strictly mildly interesting material. If it's too interesting, it doesn't belong. If it's not interesting, it doesn't belong.
This is obviously an objective criteria, so the mods are always right. Or maybe mildly right? Ahh.. what do we know?
Just post some stuff and don't spam.
founded 1 year ago
MODERATORS
I searched it up:
It seems the smaller tube is pressurised, the larger bulb is under a vacuum. Some of the other diagrams also show a getter in the bulb, so it's a proper vacuum tube level vacuum.