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A Vacuum Diode for Make: Magazine
22
l
luu
4 days ago
2 comments
Read Article on nickpoole.me
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Discussion (2 Comments)
Read Original on HackerNews
Luc
•
34 minutes 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
•
18 minutes ago
You'll find a similar thing in vacuum fluorescent displays as well [0].
[0]:
https://ibb.co/XZHWLD3x
Discussion (2 Comments)Read Original on HackerNews
[0]: https://ibb.co/XZHWLD3x