In message , Brian Gaff
writes
I have in my posession, an Atari 8 bit 800xl and disc drive 5.25 inch
and a printer interface that all work, and some cart games. The ideal
use for an
analogue tv.

Somewhere in my loft I have the printout of the complete source code for
the OS in one of those.
About a year ago I spent about an hour or two up there looking for it
after someone asked me a question, but the search failed.
--
Bill