Grant.
Light bulbs contain inert gas at atmospheric pressure.
Vacuum tubes (thermionic valves) contain? a vacuum.
This is why the glass is so much thicker than a light bulb.
The most dangerous example of the devices is the large TV picture tube.
If you have a look the faceplate glass is quite thick, especially on the
super flat screens.
Cheers
Brian
-------Original Message-------
From:
Homebrew_PCBs@yahoogroups.comDate: 05/06/05 09:08:10
To:
Homebrew_PCBs@yahoogroups.comSubject: Re: [Homebrew_PCBs] Re: Cables and connectors - vacuum chamber
Snip>
Everyone probably has several
dozen vacuum chambers in their homes in the form of light bulbs. Failure of
a vacuum chamber results in things being drawn into the chamber, away from
the operator. As long as the structure doesn't shatter (like a light bulb)
not much harm can come of it.
< Snip
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