On 25/04/2017 17:46, js--- via cctalk wrote:
On 4/25/2017 11:34 AM, Pete Turnbull via cctalk wrote:
Definitely. It takes a while, but even behind window glass (which is barely transparent to short wavelength UV) EPROMs can eventually lose their content. It happened to a friend who had a machine with no top cover, on a desk under a window, after about 5 years. But in direct sunlight, certainly just hours, and possibly just several tens of minutes if you're unlucky.
Is the same true even if they have either a paper stick or a foil sticker over the eprom window? I would *guess* that stickers slow or stop the process altogether.
Of course, that's their purpose - foil is impervious to UV, black plastic tape and floppy disk write-protect tabs (that's write-enable tabs for some of us) are good, though paper is better than nothing.
-- Pete Pete Turnbull
