Hi,
PE (Practical Electorncc) 'CHAMP' system, in
1977 or so. It
was built on stribboard (and IC postion layouts were given, but
you had to work out where to run the wires from the shcematic).
As was the assembly listing of the monitor ROM.
A couple of years later they produced the "System 68", a 6800 based machine
constructed on Eurocard sized PCBs (though using an edge connector rather
than a DIN-whatever connector).
IIRC circuit diagrams and PCB layouts were provided, along with a full
listing of the system monitor program. You could even buy ready made PCBs
(and kits of parts?) from a little company called "Newbury Data"....they
actually had an office a couple of miles down the road from here at the
time.
Not sure whether ETI published the PCB layout for the "Triton" (I'm pretty
sure they didn't, it was a fairly large, through hole plated PCB), but they
sure publisged the schematics and monitor listings.
Then there was the UK101.... :-)
TTFN - Pete.