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TIL the shiny metal coating on top of vacuum tubes is not an X-ray shield, but a reactive coating to scavenge any remaining molecules out of the vacuum.
by Luc 2mo ago
TIL the shiny metal coating on top of vacuum tubes is not an X-ray shield, but a reactive coating to scavenge any remaining molecules out of the vacuum.
- Cyan488 2mo agoYou'll find a similar thing in vacuum fluorescent displays as well [0]. [0]: https://ibb.co/XZHWLD3x https://ibb.co/XZHWLD3x