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Manual regularly updated, download at
https://obsolescence.dev/
pidp10-sw/PiDP-10_Manual.pdf
. And run 'git pull' in your /opt/pidp10 directory for any sw updates!
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Jonathan Gutierrez
, …
Lars Brinkhoff
4
May 22
Remote Type 340
There have been some experiments modifying the emulator so it sends display data over the network to
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Remote Type 340
There have been some experiments modifying the emulator so it sends display data over the network to
May 22
Andrew Barron
, …
AltairArchaeology
73
May 18
New book about the PiDP-10 including ITS, TOPS-10 and TOPS-20
Andrew, I picked up a copy of your book, and I have to say it is fantastic! I've only explored
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New book about the PiDP-10 including ITS, TOPS-10 and TOPS-20
Andrew, I picked up a copy of your book, and I have to say it is fantastic! I've only explored
May 18
Matthias Barthel
,
Milo Velimirović
3
May 16
schematics of the pcb
Thanks Milo 👍 Milo Velimirović <milovel...@gmail.com> schrieb am Sa., 16. Mai 2026, 17:24:
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schematics of the pcb
Thanks Milo 👍 Milo Velimirović <milovel...@gmail.com> schrieb am Sa., 16. Mai 2026, 17:24:
May 16
W Travis
,
steve...@gmail.com
2
May 15
Oddity with awk in pdpcontrol.sh ?
That could be intentional. The top of page 9 of the PiDP-10 Systems User's Guide (https://
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Oddity with awk in pdpcontrol.sh ?
That could be intentional. The top of page 9 of the PiDP-10 Systems User's Guide (https://
May 15
Curtis Smith (史國興)
, …
terri-...@glaver.org
8
May 10
No lights after update
So, it turned out to be a mismatch of libc; the packaged pidp10 was linked to 2.38 but my bookworm
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No lights after update
So, it turned out to be a mismatch of libc; the packaged pidp10 was linked to 2.38 but my bookworm
May 10
R Clark
, …
Lars Brinkhoff
27
May 7
TYPE 340 round display question
wjegr...@gmail.com wrote: A 340 can operate completely autonomously by using subroutine mode to
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TYPE 340 round display question
wjegr...@gmail.com wrote: A 340 can operate completely autonomously by using subroutine mode to
May 7
Lars Brinkhoff
, …
Michael Thompson
10
May 2
TOPS-20AN
Noah, As far as I know only the ADP modified KS10 systems had 1024kw of RAM. The rest were limited to
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TOPS-20AN
Noah, As far as I know only the ADP modified KS10 systems had 1024kw of RAM. The rest were limited to
May 2
Lars Brinkhoff
, …
wjegr...@gmail.com
22
May 2
Join me, together we can rule the ARPANET
My pidip-10 is currently doing nothing but idling, running ITS 24/7. I'm totally obsessed with
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Join me, together we can rule the ARPANET
My pidip-10 is currently doing nothing but idling, running ITS 24/7. I'm totally obsessed with
May 2
Jeff Shrager
, …
David Todd
17
May 1
Seeking IPL-V on PDP-10 (or, for that matter, any of the retro systems)
Thanks, David. We know that IPL-V ran on other machines. There was even a PC version, written in
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Seeking IPL-V on PDP-10 (or, for that matter, any of the retro systems)
Thanks, David. We know that IPL-V ran on other machines. There was even a PC version, written in
May 1
Luke Shiner
,
oscarv
4
Apr 28
LED and switch failure
Yes, I reflowed the GPIO connector and it's now working perfectly again. Thank you for asking, I
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LED and switch failure
Yes, I reflowed the GPIO connector and it's now working perfectly again. Thank you for asking, I
Apr 28
Steve Lewis
, …
oscarv
3
Apr 27
PiDP-10 odd issue with CON (slows down when doing a large window)
Steve, I'm not surprised, the little Teletype CON TTY program is very poorly written (by me). It
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PiDP-10 odd issue with CON (slows down when doing a large window)
Steve, I'm not surprised, the little Teletype CON TTY program is very poorly written (by me). It
Apr 27
oscarv
Apr 27
Newsletter, Parts tester
All, With apologies for not being online as much as I should: The latest 'Newsletter' with a
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Newsletter, Parts tester
All, With apologies for not being online as much as I should: The latest 'Newsletter' with a
Apr 27
Lars Brinkhoff
, …
Noah Smith
5
Apr 22
Blog series about TOPS-10
Hi John, thanks for this note, will contact you directly in a few minutes. We're getting ready
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Blog series about TOPS-10
Hi John, thanks for this note, will contact you directly in a few minutes. We're getting ready
Apr 22
Steve Lewis
, …
Luke Shiner
3
Apr 18
RPi4 to RPi5 upgrades nots on PiDP-10
The RPi5 really does require a heatsink and fan. The official one is cheap and works great, highly
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RPi4 to RPi5 upgrades nots on PiDP-10
The RPi5 really does require a heatsink and fan. The official one is cheap and works great, highly
Apr 18
Lars Brinkhoff
Apr 17
Chaosnet on TOPS-20 now considered stable
https://github.com/bictorv/tops20-chaos
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Chaosnet on TOPS-20 now considered stable
https://github.com/bictorv/tops20-chaos
Apr 17
Steve Lewis
,
Eric Swenson
4
Apr 15
New PiDP-10 owner 2026 - working great, just have IMLAC issue
You could do your own multi-user simulation — just fire off a few host shells to connect to ITS with
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New PiDP-10 owner 2026 - working great, just have IMLAC issue
You could do your own multi-user simulation — just fire off a few host shells to connect to ITS with
Apr 15
Lars Brinkhoff
2
Apr 15
COLOR HACK
Some of the hacks use switches as input. However, it's not the regular console switches, but the
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COLOR HACK
Some of the hacks use switches as input. However, it's not the regular console switches, but the
Apr 15
briandenley
,
terri-...@glaver.org
2
Mar 14
Serial output from PiDP-10
On Tuesday, March 10, 2026 at 10:04:54 PM UTC-4 briandenley wrote: I would like to connect my PiDP-10
unread,
Serial output from PiDP-10
On Tuesday, March 10, 2026 at 10:04:54 PM UTC-4 briandenley wrote: I would like to connect my PiDP-10
Mar 14
Harris Newman
Feb 28
Decwar clone
I've reversed engineered decwar in golang, it can run on a variety of platforms. The command line
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Decwar clone
I've reversed engineered decwar in golang, it can run on a variety of platforms. The command line
Feb 28
Noah Smith
Feb 28
Picture of the UT Austin DEC10 (aka Decwar Mothership) around 1976
Title says it all - Enjoy!:) https://decwar.gitlab.io/blog/picture-of-the-ut-austin-dec-10-around-
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Picture of the UT Austin DEC10 (aka Decwar Mothership) around 1976
Title says it all - Enjoy!:) https://decwar.gitlab.io/blog/picture-of-the-ut-austin-dec-10-around-
Feb 28
Tony Nicholson
,
David Todd
4
Feb 18
TOPS-20 PANDA and Ethernet woes under PDP10-KL on Raspberry Pi OS Bookworm
Tony, On 2/17/26 3:33 PM, Tony Nicholson wrote: If the MAC address of a WLAN interface changes, it
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TOPS-20 PANDA and Ethernet woes under PDP10-KL on Raspberry Pi OS Bookworm
Tony, On 2/17/26 3:33 PM, Tony Nicholson wrote: If the MAC address of a WLAN interface changes, it
Feb 18
Charles Ess
2
Feb 10
Color scope window not appearing on booting into ITS
Cancel red alert ... (ST:NG fans ...) The problem turned out to be that I was editing boot.pi in the
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Color scope window not appearing on booting into ITS
Cancel red alert ... (ST:NG fans ...) The problem turned out to be that I was editing boot.pi in the
Feb 10
DR
, …
Eric Brown
28
Feb 9
Now I have no BlinkenLitz
Something like a Unibone in reverse? Sent from my iPhone On Feb 8, 2026, at 6:00 PM, terri-...@glaver
unread,
Now I have no BlinkenLitz
Something like a Unibone in reverse? Sent from my iPhone On Feb 8, 2026, at 6:00 PM, terri-...@glaver
Feb 9
Layton Graye
, …
Malcolm Ray
14
Feb 4
Working PiDP-10 not loading TOPS-10, or ITS
Able to load TOPS-10, and ITS. Now ...to figure out how to get something out of those systems. Time
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Working PiDP-10 not loading TOPS-10, or ITS
Able to load TOPS-10, and ITS. Now ...to figure out how to get something out of those systems. Time
Feb 4
Francis King
,
Lars Brinkhoff
3
Jan 31
Type 340 display problems
Hello Lars, Thank you for your comments. I agree that .DSTART would be more efficient. I'll try
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Type 340 display problems
Hello Lars, Thank you for your comments. I agree that .DSTART would be more efficient. I'll try
Jan 31
Harry Saal
,
Layton Graye
4
Jan 29
newly assembled PiDP-10 behaves as "headless": no blinky lights
If am running the Raspberry PI, and don't get blinky lights automatically. I have to run the test
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newly assembled PiDP-10 behaves as "headless": no blinky lights
If am running the Raspberry PI, and don't get blinky lights automatically. I have to run the test
Jan 29
Charles Ess
Jan 24
noisy teletype no longer holding after recent re-install
Hi all, The microSD on my Raspi-5 began failing yesterday. I was able to use the Raspi SD card copier
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noisy teletype no longer holding after recent re-install
Hi all, The microSD on my Raspi-5 began failing yesterday. I was able to use the Raspi SD card copier
Jan 24
Francis King
2
Jan 23
Display on a Type 340 display - Eureka!
I have written an assembler for the Type 340 display. It runs within MS Excel, and turns a sequence
unread,
Display on a Type 340 display - Eureka!
I have written an assembler for the Type 340 display. It runs within MS Excel, and turns a sequence
Jan 23
Carl Marbach
, …
oscarv
36
12/31/25
minimum software
Yes - I pulled in all Richard's improvements. Next step, in January, will be to have a working
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minimum software
Yes - I pulled in all Richard's improvements. Next step, in January, will be to have a working
12/31/25
Capnrob97
, …
Lars Brinkhoff
9
12/30/25
Question about possibility of host pi sending messages to the ITS teletype Model 33
I got the python script going to download the ABC News top stories RSS feed. The bottom teletype is
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Question about possibility of host pi sending messages to the ITS teletype Model 33
I got the python script going to download the ABC News top stories RSS feed. The bottom teletype is
12/30/25