Apple 1 schematics

From: Peter C. Wallace <pcw_at_mesanet.com>
Date: Sun Jan 19 12:32:00 2003

On Sun, 19 Jan 2003, J.C.Wren wrote:

> You think? I've not held an Apple I board in my hands, but looking at the
> routing, I don't see any of the characteristics marks of a hand layout. The
> tracks are too even, and way they're run horizontally is a hallmark of early
> routing assistance algorithms.
>
> --John


I have held one in my hands (when they were selling kits at the entance to the
Homebrew computer club - thats been a while)

The time frame alone pretty much suggests a hand layout... I would have
guessed that Wozniac taped it up himself.

Also hand layouts can be very even because they were typically reduced 2X or
even 4X and were layed out on a light table over an alignment grid.

>
>
> > -----Original Message-----
> > From: cctalk-admin_at_classiccmp.org
> > [mailto:cctalk-admin_at_classiccmp.org]On
> > Behalf Of Peter C. Wallace
> > Sent: Sunday, January 19, 2003 11:13
> > To: cctalk_at_classiccmp.org
> > Subject: RE: Apple 1 schematics
> >
> >
> > On Sun, 19 Jan 2003, J.C.Wren wrote:
> >
> > > No, I meant that the board only has components on one
> > side, unlike a few
> > > custom through-hole boards I've seen, and more and more
> > surface mount type
> > > boards.
> > >
> > > I wonder what CAD system they used to lay it out with.
> > >
> > > --John
> >
> >
> > CAD system? Most likely hand taped at that time...
> >
> > Ah yes, Bishop Graphics decals and puppets, black .032" tape,
> > Exacto knives,
> > Mylar overlays... Brings back memories (and nightmares)
> >
> > PCW
> >
> >
> >
>
>
>

Peter Wallace
Mesa Electronics
Received on Sun Jan 19 2003 - 12:32:00 GMT