Apple 1 schematics

From: Tothwolf <tothwolf_at_concentric.net>
Date: Sun Jan 19 05:42:01 2003

On Sat, 18 Jan 2003, Sellam Ismail wrote:
> On Sat, 18 Jan 2003, Tothwolf wrote:
>
> > Another option for the second and third problems is to contact Woz and
> > see if he would be willing to help. I have so far restrained myself
> > from emailing him, since I know he gets tons and tons of emails,
> > including people asking him if he has an Apple 1 he could give them,
> > etc. I'd imagine Woz would very much like to see the Apple 1
> > preserved, but it would probably take him quite a bit of time to find
> > all the docs and info that we'd need.
>
> I asked Woz, and he said as far as he knows, the original masks for the
> Apple-1 PC board no longer exist.

Sad. Maybe one day some will turn up. Of course, that will be the day
after reproduction boards come back from the fab shop...

> A schematic would have to be made from an original board. Unsoldering
> the chips and sockets would be very intrusive and I doubt you'll find
> anyone willing to do that. Ideally there would be some other
> non-intrusive method. X-ray perhaps?

Any traces that go underneath components won't show up well on an X-ray
(well, from what I've seen anyway). DIP component leads don't end at the
edges of the package, so it tends block the image. There are X-ray viewing
systems intended for SMT and BGA work that might work for some things, but
they cost a small fortune.

I'm probably one of the few that would be willing to take such a board to
bits (but I also mentioned that before). Of course, that would be *after*
I get myself a Metcal MX500 and DS1 ;)

-Toth
Received on Sun Jan 19 2003 - 05:42:01 GMT