4 Nov
1998
4 Nov
'98
2:49 a.m.
I'm not sure how he got around this but I know he did this at a time when
the KIM was still in production and as I recall he did buy some specific
parts directly from the KIM-1 manufacture. I remember the kim keyboard
being genuine.
George
=========================================================
George L. Rachor george(a)racsys.rt.rain.com
Beaverton, Oregon http://racsys.rt.rain.com
On Wed, 4 Nov 1998, Hans Franke wrote:
I knew someone
who built a KIM-1 from schematics. His departure is that
he did it all on the S100 bus. He ran it for a number of years while we
were in school together. I need to find out what happened to that
machine.
KIM-1 from schematics ? And where did he get the
6530-2 and -3 without taking them from a real KIM ?
I guess it was more like a KIM alike with 6532's
(with a bit of additional decoding, changing two
lines and just not using half of the RAM they could
work as 6530 without ROM) and a 2716 (also with
additional address decoding).
I think about a KIM clone since almost two years
(the KIM was my second computer, the first I did
build myself), but I can'T come up with a solution
for the 6530 problem other than building new chips,
or changing the design. Also the keyboad might be
a problem, together with various discrete parts,
that are just look different nowadays. Even if the
main parts are placed like in the original (maybe
hiding the ROM below the CPU using SMD parts :) it
will be a vissible diference, greater than just in
the conection layer.
Gruss
Hans
--
Ich denke, also bin ich, also gut
HRK