2 Mar
2016
2 Mar
'16
8:18 a.m.
Hi guys...
I am currently looking for documentation (configuration, SCH, ...) on DEC's M865
Teletype-interface. Not the M8650 or M8655, mind you.
Could someone point me to the right direction?
Thanks a lot,
Martin
2 Mar
2 Mar
3:33 p.m.
From: Martin Meiner: Wednesday, March 02, 2016 8:18 AM
I am currently looking for documentation
(configuration, SCH, ...) on DEC's
M865 Teletype-interface. Not the M8650 or M8655, mind you.
Could someone point me to the right direction?
Looking through my stuff, I fail to find an M865 or any documentation
specific to it.
On the other hand, my impression was (and is) that the M865 and the
M8650 are just two versions of the same basic KL8E design.
If you want to send me photos, I can compare them to the M8650,
and perhaps highlight the changes.
Vince
3 Mar
3 Mar
12:10 a.m.
On Wed, 2 Mar 2016, Martin Meiner wrote:
Hi guys...
I am currently looking for documentation (configuration, SCH, ...) on DEC's M865
Teletype-interface. Not the M8650 or M8655, mind you.
Could someone point me to the right direction?
We have the drawings on the M865 (the real one). I suppose you didn't
find them on bitsavers.
Later this afternoon I'll scan them and make them available on our ftp-
server.
Klemens
--
klemens krause
Stuttgarter KompetenzZentrum fyr Minimal- & Retrocomputing.
http://computermuseum.informatik.uni-stuttgart.de
3:39 a.m.
On Thu, 3 Mar 2016, krause at informatik.uni-stuttgart.de wrote:
On Wed, 2 Mar 2016, Martin Meiner wrote:
It's online now at
ftp://computermuseum.informatik.uni-stuttgart.de/dec/pdp8e/E-CS-M865-01_KL8E_ConsoleTeletypeControl_14Jun1971.pdf
Christian
I am currently looking for documentation
(configuration, SCH, ...) on DEC's
M865 Teletype-interface. Not the M8650 or M8655, mind you.
Could someone point me to the right direction?
We have the drawings on the M865 (the real one). I suppose you didn't find
them on bitsavers.
Later this afternoon I'll scan them and make them available on our ftp-
server.
8:24 a.m.
On Thu, 3 Mar 2016, Christian Corti wrote:
...
It's online now at
ftp://computermuseum.informatik.uni-stuttgart.de/dec/pdp8e/E-CS-M865-01_KL8E_ConsoleTeletypeControl_14Jun1971.pdf
Christian
I moved the scans in a lower directory
.../dec/pdp8e/hard
I also added a scan of a clever modification, that the foreowners of the
machine made 40 years ago:
They had two serial interfaces, one M865 and one M8650 with the same I/O-
address 03/04.
Only one at a time is active, controlled by "SW" on the frontpanel:
"SW" up: 9600Bd - M8650
"SW" down: 110Bd current loop M865
The modification on the M865 is simple, the modification on the M8650
is more complicated as they added also hardware flowcontrol. They added
an additional 7400 (E49) on the board.
Picture M8650_switch_1.jpg is a first version, which they modified some
days later to M8650_switch_2.jpg.
Klemens
4 Mar
4 Mar
10:14 p.m.
From: krause: Thursday, March 03, 2016 8:24 AM
On Thu, 3 Mar 2016, Christian Corti wrote:
Nice. Thanks!
Vince
It's online now at
ftp://computermuseum.informatik.uni-stuttgart.de/dec/pdp8e/E-CS-M865-01_KL8E_ConsoleTeletypeControl_14Jun1971.pdf
I moved the scans in a lower directory
.../dec/pdp8e/hard
I also added a scan of a clever modification, that the foreowners of the
machine made 40 years ago:
2997
days inactive
3000
days old
5 comments
4 participants
participants (4)
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admin＠meiner.ch -
cc＠informatik.uni-stuttgart.de -
krause＠informatik.uni-stuttgart.de -
v.slyngstad＠frontier.com