4 Apr
2002
4 Apr
'02
1:20 p.m.
From: Peter C. Wallace <pcw(a)mesanet.com
I have a few of those boards... Wich I had the correct prints for the
board numbers
I do have. Could be fun to bend them into a general purpose 8bitter.
Allison
Hytype IIs also use a 8 bit TTL based microcoded machine (IICRC they use
74LS283 adders, 74LS170 register file chips, along with bipolar
PROMS)...
4 Apr
4 Apr
2:46 p.m.
On Thu, 4 Apr 2002, ajp166 wrote:
From: Peter C. Wallace <pcw(a)mesanet.com>
I have a few of those boards... Wich I had the correct prints for the
board numbers
I do have. Could be fun to bend them into a general purpose 8bitter.
Allison
I remember playing with that idea many many years ago. I dont think it has
much of an address range though...
Peter Wallace
Hytype IIs also use a 8 bit TTL based microcoded machine (IICRC they use
74LS283 adders, 74LS170 register file chips, along with bipolar
PROMS)...
7:38 p.m.
I have the Xerox Hytype II service manual with
schematics of the infamous Logic I and II boards,
several versions. Let me know the Board #'s and etch
and if I got 'em, I can scan them. I used to repair
these printers (mostly at a board level) in a previous
life.
I don't know if making them into your own CPU would be
practical but there sure is a lot to learn on these
two boards...even now.
--- "Peter C. Wallace" <pcw(a)mesanet.com> wrote:
On Thu, 4 Apr 2002, ajp166 wrote:
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From: Peter C. Wallace <pcw(a)mesanet.com>
>
>Hytype IIs also use a 8 bit TTL based microcoded
machine (IICRC they use
>74LS283 adders, 74LS170 register file chips,
along with bipolar
PROMS)...
I have a few of those boards... Wich I had the
correct prints for the
board numbers
I do have. Could be fun to bend them into a
general purpose 8bitter.
Allison
I remember playing with that idea many many years
ago. I dont think it has
much of an address range though...
Peter Wallace
8139
days inactive
8140
days old
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