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Discussion group for the PiDP-11.
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Neil Higgins
, …
Sean Sliwinski
557
10:11 AM
Show us your kits - completed PiDP-11s
Awesome setup! Sean On Thu, Nov 6, 2025 at 9:46 AM andy <lordha...@gmail.com> wrote: that
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Show us your kits - completed PiDP-11s
Awesome setup! Sean On Thu, Nov 6, 2025 at 9:46 AM andy <lordha...@gmail.com> wrote: that
10:11 AM
Pavel Tsybulin
, …
terri-...@glaver.org
17
Nov 3
RT-11 Paginated output to the terminal
On Sunday, November 2, 2025 at 10:33:05 AM UTC-5 b...@softjar.se wrote: However, times have moved on.
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RT-11 Paginated output to the terminal
On Sunday, November 2, 2025 at 10:33:05 AM UTC-5 b...@softjar.se wrote: However, times have moved on.
Nov 3
David Rosengrant
, …
timr...@gmail.com
3
Nov 3
PiDP's
Well done. It is fun to play with this stuff we used for work or school back in the day. Although I
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PiDP's
Well done. It is fun to play with this stuff we used for work or school back in the day. Although I
Nov 3
Jeff Spears
,
Glenn Babecki
2
Nov 2
Henk Gooijen rk05 disk drive (usb) and rack
I can't speak for Henk's and Oscar's current status on the RK05 project, but my
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Henk Gooijen rk05 disk drive (usb) and rack
I can't speak for Henk's and Oscar's current status on the RK05 project, but my
Nov 2
Folkert van Heusden
,
terri-...@glaver.org
3
Nov 2
2nd hand PiDP-11
Good points! It is an assembled device. No Pi included and the area is Netherlands (South-Holland,
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2nd hand PiDP-11
Good points! It is an assembled device. No Pi included and the area is Netherlands (South-Holland,
Nov 2
Alberto Calò
, …
Adam Thornton
26
Oct 26
RT11 - Create / edit a new .rl2 disk for storing files
Thank you! Assembling and linking the device driver was exactly what I needed to do. Adam
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RT11 - Create / edit a new .rl2 disk for storing files
Thank you! Assembling and linking the device driver was exactly what I needed to do. Adam
Oct 26
Eric N
, …
terri-...@glaver.org
47
Oct 25
Fixing the LED panel freeze issue
On Friday, October 24, 2025 at 7:51:38 PM UTC-4 rbclar...@gmail.com wrote: One of these days, I need
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Fixing the LED panel freeze issue
On Friday, October 24, 2025 at 7:51:38 PM UTC-4 rbclar...@gmail.com wrote: One of these days, I need
Oct 25
Pete Hartman
, …
terri-...@glaver.org
11
Oct 18
Troubleshooting a new build
On Saturday, October 18, 2025 at 1:31:34 PM UTC-4 alchy...@gmail.com wrote: Just picked this
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Troubleshooting a new build
On Saturday, October 18, 2025 at 1:31:34 PM UTC-4 alchy...@gmail.com wrote: Just picked this
Oct 18
Paulo Rebordão
, …
frankg
30
Oct 9
Looking for a DCJ11-AE CPU
As an alternative to a full panel it is possible to have blinken lights. The retrocmp site sells two
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Looking for a DCJ11-AE CPU
As an alternative to a full panel it is possible to have blinken lights. The retrocmp site sells two
Oct 9
Bert Driehuis
, …
terri-...@glaver.org
3
Oct 9
Re: [PiDP-11] Inconsistant LED color
Oddly, I don't see the original post that was quoted here. Anyway... The red of my PiDP-11s seems
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Re: [PiDP-11] Inconsistant LED color
Oddly, I don't see the original post that was quoted here. Anyway... The red of my PiDP-11s seems
Oct 9
Johnny Billquist
,
Trevor Heartfield
6
Oct 7
Announcing TCP/IP V2.18 for RSX-11M-PLUS
Hi Johnny, I restored to my backup and tried again this morning but the problem still exists. Kind
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Announcing TCP/IP V2.18 for RSX-11M-PLUS
Hi Johnny, I restored to my backup and tried again this morning but the problem still exists. Kind
Oct 7
DR
, …
terri-...@glaver.org
36
Oct 4
Oscar, a thought for your next project for us
Oscar: I have attached a picture of one of the coveted IBM switches from the era of high-design and
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Oscar, a thought for your next project for us
Oscar: I have attached a picture of one of the coveted IBM switches from the era of high-design and
Oct 4
Henri Ducrocq
Oct 4
A controller written in Go
https://github.com/perpen/blink11 I wrote this a few years ago, and I've been wanting to create a
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A controller written in Go
https://github.com/perpen/blink11 I wrote this a few years ago, and I've been wanting to create a
Oct 4
Warren Toomey
,
oscarv
3
Oct 3
Any Interest in CNews?
I just had a go at installing it just now. Here are the details of my attempt. If anybody can help
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Any Interest in CNews?
I just had a go at installing it just now. Here are the details of my attempt. If anybody can help
Oct 3
DR
Sep 26
Seymour Cray's 100th birthday celebrated Sunday at the Chippewa Valley Museum
There will be a 4 hour free open house at the Museum Sunday. I think they have at least a Cray on
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Seymour Cray's 100th birthday celebrated Sunday at the Chippewa Valley Museum
There will be a 4 hour free open house at the Museum Sunday. I think they have at least a Cray on
Sep 26
Michael Katzmann
, …
Doug Braun
11
Sep 24
More authentic looking knobs
I already have paid-up claimants for all the extra knobs I have. BTW, I recently ordered something
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More authentic looking knobs
I already have paid-up claimants for all the extra knobs I have. BTW, I recently ordered something
Sep 24
Adam Thornton
,
johntk...@gmail.com
2
Sep 21
PiDP-1 s/n 48 arrived today!
Make sure to join the PDP-1 group; lots of building advice. On Thursday, September 18, 2025 at 3:26:
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PiDP-1 s/n 48 arrived today!
Make sure to join the PDP-1 group; lots of building advice. On Thursday, September 18, 2025 at 3:26:
Sep 21
Sytse van Slooten
,
Glenn Babecki
6
Sep 20
PDP2011 release
Thanks for your insights and things to consider regarding my line of questioning. Best Regards, Glenn
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PDP2011 release
Thanks for your insights and things to consider regarding my line of questioning. Best Regards, Glenn
Sep 20
Carl Marbach
,
Johnny Billquist
3
Sep 17
adding games disk to rsts7
I reloaded the RK05-GAMES-RSTS0-0.DSK And it all works! I can now use my VT420, on RSTS and I have
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adding games disk to rsts7
I reloaded the RK05-GAMES-RSTS0-0.DSK And it all works! I can now use my VT420, on RSTS and I have
Sep 17
Carl Marbach
, …
Johnny Billquist
4
Sep 16
TREK52.BAS doesn't work on my new Pi build. WHY???
I doubt different versions of simh would matter for this. I agree that BP2 is often a better tool to
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TREK52.BAS doesn't work on my new Pi build. WHY???
I doubt different versions of simh would matter for this. I agree that BP2 is often a better tool to
Sep 16
Anthony Eros
, …
Jos Fries
7
Sep 13
MUMPS-11 distribution
Op dinsdag 15 juli 2025 om 15:16:19 UTC+2 schreef foob...@gmail.com: Thanks for the pointers! I had
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MUMPS-11 distribution
Op dinsdag 15 juli 2025 om 15:16:19 UTC+2 schreef foob...@gmail.com: Thanks for the pointers! I had
Sep 13
cr...@ruffspot.net
, …
Jeff Spears
3
Sep 12
Re: [PiDP-11] Unable to access mim.stupi.net (192.108.202.74) RSX-11M+
I figured that out and tried to delete the post. Thank you! On Wednesday, September 10, 2025 at 5:46:
unread,
Re: [PiDP-11] Unable to access mim.stupi.net (192.108.202.74) RSX-11M+
I figured that out and tried to delete the post. Thank you! On Wednesday, September 10, 2025 at 5:46:
Sep 12
Carl Marbach
, …
Mike Markowski
14
Sep 10
RSTS Professional Magazine
Thank you, Anton, this could be all of them prior to Vax Professional - many thanks! -Mike...off to
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RSTS Professional Magazine
Thank you, Anton, this could be all of them prior to Vax Professional - many thanks! -Mike...off to
Sep 10
terry-...@glaver.org
, …
desa...@gmail.com
14
Sep 10
Fixing the PiDP-11 code has been an exercise in frustration
On Tuesday, September 9, 2025 at 3:30:42 AM UTC-4 desa...@gmail.com wrote: I did manually merge the
unread,
Fixing the PiDP-11 code has been an exercise in frustration
On Tuesday, September 9, 2025 at 3:30:42 AM UTC-4 desa...@gmail.com wrote: I did manually merge the
Sep 10
Chris Jordan
, …
Manuel Maseda
5
Sep 4
RSX11M+ HP7550 plotter?
If you want the real thing I can sell you a genuine DEC LVP16 pen plotter !! Manuel On Wednesday,
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RSX11M+ HP7550 plotter?
If you want the real thing I can sell you a genuine DEC LVP16 pen plotter !! Manuel On Wednesday,
Sep 4
Anthony Eros
, …
terry-...@glaver.org
4
Sep 2
Weird SIMH behavior on Windows PC
On Tuesday, September 2, 2025 at 8:50:34 PM UTC-4 foob...@gmail.com wrote: I'm guessing I need to
unread,
Weird SIMH behavior on Windows PC
On Tuesday, September 2, 2025 at 8:50:34 PM UTC-4 foob...@gmail.com wrote: I'm guessing I need to
Sep 2
Johnny Billquist
, …
terry-...@glaver.org
4
Aug 31
2.11BSD patch 495-496
There's an issue with the Covello 482 image where the 482 patch was applied but not all of the
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2.11BSD patch 495-496
There's an issue with the Covello 482 image where the 482 patch was applied but not all of the
Aug 31
Perry Metzger
, …
johntk...@gmail.com
17
Aug 23
Somewhat easier to deal with SIMH PDP-11 docs...
FYI, for those who are VAX afficionados, I've also cleaned up the SIMH VAX documentation: https:/
unread,
Somewhat easier to deal with SIMH PDP-11 docs...
FYI, for those who are VAX afficionados, I've also cleaned up the SIMH VAX documentation: https:/
Aug 23
Paulo Rebordão
, …
Johnny Billquist
11
Aug 23
Question about BHALT_L line
I have a 2 channel scope so tomorrow I'll take a look at lines BDCOK and BPOK A sábado, 23/08/
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Question about BHALT_L line
I have a 2 channel scope so tomorrow I'll take a look at lines BDCOK and BPOK A sábado, 23/08/
Aug 23
Carl Marbach
,
Tony Nicholson
2
Aug 23
protection violation - in MOUNT
On Saturday, August 23, 2025 at 5:32:24 PM UTC+10 cmar...@marbachs.com wrote: I attach rk05-games-
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protection violation - in MOUNT
On Saturday, August 23, 2025 at 5:32:24 PM UTC+10 cmar...@marbachs.com wrote: I attach rk05-games-
Aug 23