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Re: What about this experiment? Was Neon Tube sources.



Similar phosphors in CRTs... Usually some sort of sulfide (ZnS is common)
with an "activating" ion which determines the color, etc.  Rare earths
(Yttrium, etc.) give the reds..

In any case, the efield won't do anything... In the CRT case it is the
electrons hitting the phosphor.. in the fluorescent (and luminious gas lamp
"aka" neon) it is the UV 

Tesla list wrote:
> 
> Original poster: "Mike Harrison" <mike-at-whitewing.co.uk>
> 
> On Wed, 08 Nov 2000 19:32:29 -0700, you wrote:
> 
> >Original poster: "Jim Lux" <jimlux-at-earthlink-dot-net>
> >
> >A few problems:
> >
> >1) The white powder is a "phosphor" and is moderately toxic.  It is not
> >sensitive to elecric fields.
> >2) the fluorescent tube has mercury in it, the vapor of which IS sensitive
> >to high electric fields, emitting UV light, which hits the phosphor and
> >making it glow.
> >3) Mercury is also somewhat toxic.
> >
> >Bottom line... leave the fluorescent tubes intact.
> 
> But what about the phosphor coating in CRT's...? might be intersting
> to try!