Reverse engineering vintage PCBs

[tony duell]

> > and a lot of (pleasant) time.
> 
> I don't find it all that pleasant, but at least there's a sense of
> accomplishment
> when I'm done.

I find that this is the quickest way to really understand how a machine works, so
yes, it's pleasany while I am doing it.

> > Anyway, when you have finished, feel free to make the schematic unreadable by redrawing it in a CAD
> > system.

> I just did that for the PSE Pacer CPU card. Is it unreadable?
>    http://www.brouhaha.com/~eric/retrocomputing/pse/pacer/pac-mp-001.pdf

I don't know why, but I find CAD diagrams with components one colour and wires
a different colour to be very irritating. 

-tony