On Tue, Jun 18, 2019 at 9:43 PM Al Kossow via cctalk <cctalk at classiccmp.org>
wrote:
> came across these this eve, probably only of interest to Seth, since he
> has one
> http://bitsavers.org/pdf/att/5620/schematic
>
There's also a set here:
http://www.brouhaha.com/~eric/retrocomputing/att/5620/
I have not compared them.