Hello Marty,
Thanks for the pictures! My goal was to redesign this PCB.
But your pictures are from a redesigned one from altairkit.com
It seems I will not hear anything from Grant so I will design my own PCB anyway...
The pictures are probably a good guide, I've found the schematics on s100computers.com
If anyone has more pictures of the original I would be happy to receive these too.
Thanks!
Regards, Roland
(The other rom boards are not S100 indeed, they are from my Intellec 8 )