anti-uv eprom labels

Mi first thought as well. In my opinion, *clear* scotch tape would do the job :-) AFAIK the windows are made of a special quartz glass that can be passed by the short wavelength UV needed to erase the EPROM. A normal window pane already doesn't let the short wave stuff through. Would be too bad: the mercury in mercury lamps emits most of its light in the short UV spectrum. But luckily, everything of it that is not converted at the fluorescent layer is blocked by the glass tube. The "inner lamp" (aka the best, fastest, and cheapest EPROM eraser) of a high-pressure mercury lamp is made of quartz as well, letting the hard UV through to the fluorescent outer bulb. Having the short wave UV passing glass would dramatically rise the skin cancer rate, I suspect. Best wishes, Philipp -- http://www.hachti.de