On Sun, 29 Nov 1998, Vance Gloster wrote: > In ancient times (during the 1980s) I used EPROM memory chips like 2732s. > For these chips the sun had enough UV to erase them if you left them > outside for a few hours (and it was sunny). Have not yet tried this with > PIC windowed EPROM parts, but it is worth a try, and VERY cheap. ;) Apparently it helps a lot if you live down under (the ozone hole). Peter