> http://www.dailymail.co.uk/sciencetech/article-2316522/The-Apple-set-sell=
-250-000.html
>
> Someone in the comments noted that it's a hand-taped PCB. When
> did (proper) PCB CAD start ?
>
> Joe

I hand taped a lot of PCBs before I got my Dasoft CAD system that ran
under CP/M. I used a Cromemco S-100 system with a Heath H-19 terminal and
a Houston Instruments DMP-29 plotter (which I still have). One of my first
designs (the schematic capture) is at
http://louise.hallikainen.org/BH/uploads/HaroldHallikainen/20130416125553.p=
df
.. I don't still have the plotted PCB. On this system, you'd define
netnames on each pin. It drew the lines on the schematic. The schematic is
not dated, but the manual at
http://louise.hallikainen.org/BH/uploads/HfDrc190.pdf is dated 1989. A
predecessor product (PCC-180) has schematics dated 1981, so I'd guess we
got the Dasoft system around 1985. That was the first "affordable" PCB
layout software I was aware of. I remember I spend about $2k for it.

One other thing I noticed in the photos in the article is that it looks
like the board did not have plated through holes. It looks like there are
wires soldered in all the vias to get through to the other side.

Harold


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