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

["Ed Phillips" <evp-at-xxxxxxxxxxx> (by way of Terry Fritz <twftesla-at-xxxxxxxxxx>)]

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!

	None of these phosphors will glow when excited by an electric field. 
As for TV CRT phosphors, most do not exhibit phosphorescence and do not
glow under UV.  Easiest way to check this is just to shine a UV source
on the face of the tube and observe the results.  At least some UV will
get through the face plate. Some CRT phosphors - P-2 and P-7, for
instance - are both phosphorescent and fluorescent.

	According to OSHA regulations, all fluorescent tube phosphors are
considered dangerous and great care should be taken to avoid breathing
the dust from a broken tube.  That's the reason some people use a
plastic tube around the bulb.  Since some OSHA stuff is insane, can't
vouch for the truth of this reg.

Ed