On Sun, 26 Jul 1998, Format wrote:

> So UV-A bulbs are "Black Light" bulbs?
> Will they erase a PIC?

UV-A bulbs are the kind that make white T-shirts and fluorescent paint
shine in the dark / disco etc. Also used in bug killer units. Obtained by
painting the lamp with a filtering layer that lets only UV-A through. The
lamp can be fluorescent or incandescent. UV-A is just above blue light in
the visible spectrum.

Definitely, definitely no EPROM erasers.

For all those interested in light wavelengths and measurement, search the
web for a PDF book called 'The Light Measurement Handbook'. It is made
available by a consultant who also sells calibrated sensors for various
purposes, in case you need them. The download is free, but on the large
side.

For info on safety, enter 'UV radiation protection safety' into a web
search engine such as altavista.

hope this helps,

        Peter