Homebrew PCBs

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.com
Date: 05/06/05 09:08:10
To: Homebrew_PCBs@yahoogroups.com
Subject: 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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