New pcb design for S-100 prototype board available

Grant Stockly grant at stockly.com
Mon Jun 4 15:52:51 CDT 2007


At 10:37 AM 6/4/2007, you wrote:
>On 4 Jun 2007 at 2:50, Dave McGuire wrote:
>
> >    Yes, that's why I quoted "authentic".  There's nothing (IMO) about
> > the presence or absence of a 7805 that makes an S-100 board any more
> > or less authentic...that's the point I was trying to get across.
>
>Well, I don't know much about the nuances of this collecting thing.
>Does replacement of 74LS logic with, say, 74HCT logic lower the value
>of a vintage object?

Someone built one of my Altair replica PCBs and went to great lengths to 
make sure the date code on the ICs was older than 1975.  They also sourced 
the old brown cylindrical resistors.

I provide the exact same parts that were on the origional BOM, but don't 
try to match date codes!  : )

I guess everyone has their own idea of what is vintage enough.





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