Hello Ruud,
>> I hope the above is not too trivial, but would be interested to
>> know if the above is typical.
>Things that you use become older and will break one day, thing you don't
>use, remain new. Do I have to say more? :)
Not necessarily true from what I have read (somewhere on the net no doubt).
Semiconductor durability can have a lot to do with the quality of the
packaging, in particular how air-tight it is. I have heard people say that
Commodore (MOS tech) had poor packaging quality control and even if hardware
was not used, storage in a loft or basement could result in the chips going
bad even though there was no visible board degradation.
I don't know if this is true or some conspiracy by Zilog and Motorola to
discredit MOS, but it seems reasonable enough to me. I've had boards which
look like they have been retrieved from a swamp work perfectly, yet have had
boards carefully stored for a few years fail to power up.
- Nick
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