25 Apr
2017
25 Apr
'17
10:58 a.m.
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