Groups
Groups
Sign in
Groups
Groups
Altair 8800
Conversations
About
Send feedback
Help
Altair 8800
1–30 of 54
Welcome to the Altair 8800 Google Group. This group is for the discussion of anything related to the MITS Altair 8800 computer and other vintage S100 computer hardware and software.
Mark all as read
Report group
0 selected
Walt Perko
,
Joseph Corda
3
Nov 29
Subject for the Sunday ZOOM ???
Hi, Great Joe ... I hope we can get some discussion and answers on those questions. Here's
unread,
Subject for the Sunday ZOOM ???
Hi, Great Joe ... I hope we can get some discussion and answers on those questions. Here's
Nov 29
Walt Perko
, …
Patrick Linstruth
9
Nov 24
Image to Gerber Companies ...
Hi, More info from ScanCAD.net: Dear Walt, Thank you for your recent inquiry! You will also be
unread,
Image to Gerber Companies ...
Hi, More info from ScanCAD.net: Dear Walt, Thank you for your recent inquiry! You will also be
Nov 24
Walt Perko
,
Joseph Corda
4
Nov 20
Need Help to Build a Quick Reference Help Page ...
Perfect.. thanks Walt! On Thu, Nov 20, 2025 at 8:02 PM Walt Perko <r4r...@gmail.com> wrote: Hi,
unread,
Need Help to Build a Quick Reference Help Page ...
Perfect.. thanks Walt! On Thu, Nov 20, 2025 at 8:02 PM Walt Perko <r4r...@gmail.com> wrote: Hi,
Nov 20
Joseph Corda
, …
Walt Perko
7
Nov 20
DZMBASIC and Dazzler.. I gave it a try
Walt Happy to share.. I attached the DZM_XMAS.BAS file.... A few comments about the code... As you
unread,
DZMBASIC and Dazzler.. I gave it a try
Walt Happy to share.. I attached the DZM_XMAS.BAS file.... A few comments about the code... As you
Nov 20
Joseph Corda
,
Walt Perko
2
Nov 14
Recomended Z80 Assembler for CP/M v2.2 and v3
Hi, The idea of not just the best, but two or three 8080 and Z80 assemblers might make a good demo
unread,
Recomended Z80 Assembler for CP/M v2.2 and v3
Hi, The idea of not just the best, but two or three 8080 and Z80 assemblers might make a good demo
Nov 14
Walt Perko
,
Terry Fox
3
Nov 9
Sunday ZOOM ... Got a question? Got an idea to discuss?
Programmed Output is just the OUTPUT PORT 0xFF. You can output to port 0xFF, the results will show up
unread,
Sunday ZOOM ... Got a question? Got an idea to discuss?
Programmed Output is just the OUTPUT PORT 0xFF. You can output to port 0xFF, the results will show up
Nov 9
Walt Perko
,
Joseph Corda
4
Nov 9
Reproducing the mini-Front Panel ...
Hi, This is the closest I've gotten to a mini-Front Panel Rev.F schematic: http://ilvunix.com/
unread,
Reproducing the mini-Front Panel ...
Hi, This is the closest I've gotten to a mini-Front Panel Rev.F schematic: http://ilvunix.com/
Nov 9
Walt Perko
, …
Patrick Linstruth
10
Nov 4
I think it's the mini-Front Panel ...
I would need to look at the schematic for the front panel, but it sounds like the front panel may be
unread,
I think it's the mini-Front Panel ...
I would need to look at the schematic for the front panel, but it sounds like the front panel may be
Nov 4
Walt Perko
,
Joseph Corda
3
Oct 27
Working on a new build ...
Hi, I've used the switches on other projects in the past ... I'm still waiting for the five
unread,
Working on a new build ...
Hi, I've used the switches on other projects in the past ... I'm still waiting for the five
Oct 27
Walt Perko
Oct 23
9-Slot Backplane Power IN connections ...
Hi, Looking at the side power IN connector on the 9-Slot backplane it wires up: +8V & GND -16V
unread,
9-Slot Backplane Power IN connections ...
Hi, Looking at the side power IN connector on the 9-Slot backplane it wires up: +8V & GND -16V
Oct 23
Joseph Corda
,
Patrick Linstruth
10
Oct 22
AltairZ80 SIMH: Can you convert v3.x ".dsk" files to work on v4.x
Thanks Patrick I will give it a try but honestly your suggestion of using a cpm3 that already works(
unread,
AltairZ80 SIMH: Can you convert v3.x ".dsk" files to work on v4.x
Thanks Patrick I will give it a try but honestly your suggestion of using a cpm3 that already works(
Oct 22
Walt Perko
, …
Patrick Linstruth
8
Oct 18
Subjects for ZOOMs ...
Hi, Yes, this is a new untested backplane. A great example why I think we need a two board
unread,
Subjects for ZOOMs ...
Hi, Yes, this is a new untested backplane. A great example why I think we need a two board
Oct 18
Joseph Corda
, …
Patrick Linstruth
12
Oct 16
Newbie Front Panel question 8800c and Don C miniFP
I don't know of any CPU boards that have 12V on the white Molex connector. There are only 8 pins
unread,
Newbie Front Panel question 8800c and Don C miniFP
I don't know of any CPU boards that have 12V on the white Molex connector. There are only 8 pins
Oct 16
Walt Perko
, …
Patrick Linstruth
19
Oct 16
Setting Up my ZAltair mini-FP computer ...
Walt, maybe we can use your current problem as an example of using the front panel to diagnose a
unread,
Setting Up my ZAltair mini-FP computer ...
Walt, maybe we can use your current problem as an example of using the front panel to diagnose a
Oct 16
Walt Perko
Oct 11
the Don Caprio mini-Front Panel ...
Hi, I like the panel because it's smaller. I only wish two things for the panel: 1. The holes for
unread,
the Don Caprio mini-Front Panel ...
Hi, I like the panel because it's smaller. I only wish two things for the panel: 1. The holes for
Oct 11
Walt Perko
,
Patrick Linstruth
3
Oct 11
BOOT Loaders ???
Hi, A follow-up on the Altair ROMs: The three ROMs are key parts of how MITS and other Altair 8800
unread,
BOOT Loaders ???
Hi, A follow-up on the Altair ROMs: The three ROMs are key parts of how MITS and other Altair 8800
Oct 11
Walt Perko
2
Oct 9
FYI ... Multiple Displays on One Monitor ...
Hi, He starts with the names of the ROMs on his RAM17 board at 4:40 into the video. Can anybody
unread,
FYI ... Multiple Displays on One Monitor ...
Hi, He starts with the names of the ROMs on his RAM17 board at 4:40 into the video. Can anybody
Oct 9
Walt Perko
2
Oct 4
Soldering by Maggie Zeng ...
Hi, Found another image showing soldering tips: . On Monday, September 22, 2025 at 1:35:04 PM UTC-7
unread,
Soldering by Maggie Zeng ...
Hi, Found another image showing soldering tips: . On Monday, September 22, 2025 at 1:35:04 PM UTC-7
Oct 4
Joseph Corda
Oct 4
Next Zoom meeting topic suggestion.. Available Monitor programs
Greetings If time allows I would be interested in a brief discussing on the different Monitor
unread,
Next Zoom meeting topic suggestion.. Available Monitor programs
Greetings If time allows I would be interested in a brief discussing on the different Monitor
Oct 4
Joseph Corda
, …
Walt Perko
3
Sep 30
Can a Gotek (with Flashfloppy) emulate a Altair 8" drive ?
Hi, Another thing to understand is that there are different versions of the GoTek drives. The one I
unread,
Can a Gotek (with Flashfloppy) emulate a Altair 8" drive ?
Hi, Another thing to understand is that there are different versions of the GoTek drives. The one I
Sep 30
Walt Perko
Sep 30
Thin FR4 v. Thick FR6 Backplanes ...
Hi, Okay, these discussions on the S100Group are focused on backplanes for both Altair 8800 and much
unread,
Thin FR4 v. Thick FR6 Backplanes ...
Hi, Okay, these discussions on the S100Group are focused on backplanes for both Altair 8800 and much
Sep 30
Walt Perko
, …
Terry Fox
7
Sep 28
Backplane v. Termination ...
I don't think I can make todays Zoom meeting. I think John problem was that he was trying to
unread,
Backplane v. Termination ...
I don't think I can make todays Zoom meeting. I think John problem was that he was trying to
Sep 28
Tim Geuy
,
Walt Perko
2
Sep 26
ZOOM invitation
Hi, You're added to the list ... All I needed was your email address ... . On Tuesday, September
unread,
ZOOM invitation
Hi, You're added to the list ... All I needed was your email address ... . On Tuesday, September
Sep 26
Walt Perko
, …
Joseph Corda
8
Sep 23
Questions for a ZOOM:
Hi, The info for it is also on my website: http://www.brainless.org/Altair/Repository.html#section31
unread,
Questions for a ZOOM:
Hi, The info for it is also on my website: http://www.brainless.org/Altair/Repository.html#section31
Sep 23
Joseph Corda
Sep 23
Suggested future Zoom meeting topic - Basic review and testing of unknown S100 boards
Greetings.. If there is enough interest... As I purchase or trade for S-100 bus cards from diff
unread,
Suggested future Zoom meeting topic - Basic review and testing of unknown S100 boards
Greetings.. If there is enough interest... As I purchase or trade for S-100 bus cards from diff
Sep 23
Joseph Corda
, …
Terry Fox
7
Sep 21
ArduinoFDC: A project to test 3.5" amnd 5.25" floppy drives
THe primary reason I did not add reading/writing data at the time is that most microcontrollers are
unread,
ArduinoFDC: A project to test 3.5" amnd 5.25" floppy drives
THe primary reason I did not add reading/writing data at the time is that most microcontrollers are
Sep 21
Walt Perko
Sep 21
RS-232 to USB ...
Hi, There are several adapters and cable adapters that work, but beware, some of the older ones (Some
unread,
RS-232 to USB ...
Hi, There are several adapters and cable adapters that work, but beware, some of the older ones (Some
Sep 21
Charles Wall
,
Walt Perko
2
Sep 20
ESP32 Serial Server
Hi, https://www.tindie.com/products/deltec/esp32-fdc-serial-drive-server/ . On Saturday, September 20
unread,
ESP32 Serial Server
Hi, https://www.tindie.com/products/deltec/esp32-fdc-serial-drive-server/ . On Saturday, September 20
Sep 20
Walt Perko
,
pat...@deltecent.com
3
Sep 18
ESP32 FDC+ Editing ???
Hi, Okay, all my confusion was because when I hit <ENTER> at the prompt ... I don't get
unread,
ESP32 FDC+ Editing ???
Hi, Okay, all my confusion was because when I hit <ENTER> at the prompt ... I don't get
Sep 18
Dave Sroelov
Sep 13
Re: [Altair-8800] Digest for altair-8800@googlegroups.com - 2 updates in 1 topic
How do you get on the email list for the zoom meetings, and are recordings available? On Fri, Sep 12,
unread,
Re: [Altair-8800] Digest for altair-8800@googlegroups.com - 2 updates in 1 topic
How do you get on the email list for the zoom meetings, and are recordings available? On Fri, Sep 12,
Sep 13