I should still
have all 10 artictles for the CHAMP,
CHAMP-PROG and
CHAMP-UV (EPROM eraser). But don't even think of
building one now -- just
about all the LSI parts (CPU, RAM, memory interface,
EPROMs, etc) are
almost unobtainable.
That would certainly add to the challenge of building
one, not to mention the timeframe. I did see a 4040
and some 1702's on ebay the other day. Could the other
parts be emulated somehow ?
Oh, quite probably (data sheets for them exist). But why bother? Either
make a simple 8 bit single-board machine round a common processor (6502,
Z80, 6800, 6809) which will use commonly-available memory and I/O chips,
or make a processor from scratch (either using TTL, or if you insist, an
FPGA). Either is more fun and less work than trying to get the parts for
the CHAMP, and then finding you've blown one by making a wrong connection
and that you can't get a replacement for it...
-tony