After serious thinking Andy Dingley wrote :
On Fri, 10 Feb 2006 09:58:33 GMT, (Sponix) wrote:

It's the phosphor powder on the inside of the tube that is the
problem.

Not usually (_some_ obscure phosphors are hazzardous)

The problem with fluorescents is the mercury vapour in them.

Liquid mercury I believe.

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Regards,
Harry (M1BYT) (L)
http://www.ukradioamateur.co.uk