[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: Apple I to show up on ebay...



On Sep 17, 3:59 am, "dott.Piergiorgio"
<dott.PiergiorgioNI...@KAIGUN.fastwebnet.it> wrote:

> machine, and there's no much equipment needed for producing a late
> 70s-early 80s motherboard)

I can't say I have ever heard of such a thing. Forging a production
model to look like a prototype, yes. But build it from scratch? Very,
very, very unlikely.

It would also require using old stock chips, because anything newer
might very likely have had a die shrink and be easily identifiable
(even by the naked eye) as modern. EPROMs are the obvious candidate
there.

Simulating the effects of heat-aging (delamination) on the PCB is also
not trivial; just baking it a while does not produce the same results
as 30 years of thermal cycling. Come to that, it would be easy to
identify modern PCBs by chemically testing the silkscreen and solder
mask.