> On Apr 25, 2017, at 12:46 PM, js--- via cctalk <[email protected]> wrote:
>
>
>
> On 4/25/2017 11:34 AM, Pete Turnbull via cctalk wrote:
>> On 25/04/2017 15:55, Tapley, Mark via cctalk wrote:
>>> On Apr 25, 2017, at 8:51 AM, allison via cctalk <[email protected]>
>>> wrote:
>>>
>>>> Even after all that I'd still dry it with a little heat (oven at 180F or a
>>>> clean empty
>>>> container in the sun.
>>>
>>> Irrelevant for backplanes, but for circuit boards, would any UV-erasable
>>> PROMs want to be checked to ensure their caps/covers are still in place
>>> before exposure to sunlight?
>>
>> 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.
That's what those stickers are for. Foil is probably pretty effective. Paper,
not so much, because it's rather translucent.
paul
