Altair MITS 8800 Microcomputer, CP/M, Boards Plus Extra Boards
Item History & Price
| Reference Number: Avaluer:64667289 | Brand: 8800 |
| MPN: CP/M | Type: Home Computer |
| Vintage: Yes | Model: Altair |
Altair MITS 8800 microcomputer, Run's CP/M 2.2, Original boards, plus Extra boards.
This listing is for a vintage 1975, MITS Altair 8800 Computer. Serial No. 223726K.
Cosmetically this computer is in very good condition. No dents. No deep scratches. A few scuffs here and there.More photos at: https://photos.lafleur.us/Altair-8800/
This Altair 8800 has been used for a few year in an exhibit for demonstration of early computing technology. It currently uses a “Moder...n S100-group 8080A CPU boards” (1) (2). It boots CP/M 2.2, from an SD card and support an external VGA display, with an IBM style keyboard, and with two serial ports.(Display and Keyboard are not included)
It include a Josh Bensadon S100 8080A CPU (3), card running CP/M 2.2 from an SD memory card with a S100 group VGA console I/O (4), for supporting an external VGA display and IBM style keyboard.Connectors for the external VGA, keyboard and two serial ports are extend to the real panel of the chassis.When I receive this unit many years ago, it came with the boards and items listed below. I have never powered up or tested any of the original boards that I received with this unit. Nor have I tested or used any of the 8in floppy disk. There yours to explore!Most of the changes that I or the previous owner made can be reversed to bring it back to almost100% MITS original.Altair-MITS 8800, S/N 223726KExisting Original Boards:Altair-MITS, 4K Static Memory.
Altair-MITS, 8800 CPU, Rev 0.
Altair-MITS, Serial-TTL.
Altair-MITS, 88-2 SIO, Rev 0.
S100 Sound Effects, 1980 DRC/BEC.
S100 64K Static Ram, COEX.
Processor Technology 16K Memory, 1976.
Seattle Computer, 16k Memory 24-101c, S/N 6166.
Seattle Computer, 16k Memory 24-101c, S/N 294.
Solid State Music 2k/4k Eprom (with some Eproms installed).
Solid State Music, Prom programmer, 1978, PB1, 1996.
Godbout, CompuPro CPU-Z.
Godbout, CompuPro Disk1.
Votrax SC-01A Speech Synthesizer board.
Two unknown wire-wrap boards.Manuals:Three binders with original Altair-MITS manual with some supplements, original manuals for most of the boards. Some extra misc. documentation.Disk:Many un-tested 8in floppy disk, about 5 boxes or so.
I have NOT made any inventory of them, nor have I tested or used any of them.(There are NO floppy disk drives with this system)Power supply:It’s as I received it, with an external 25amp bridge rectifier for the +8v supply.
I updated all capacitor and replace with same size units, but with higher voltage and capacitance for better performance and reliability.
I replaced the dead fan.
For safety, I added a primary power fuse socket in power supply area, to replace open fuse socket, I also added a protection cover over power terminal strip.
Older power distribution wires were replaced.Mother Board:It’s as I received it with a Processor Technology MB-1 (5), terminated mother board. A few slots look to need some TLC, but there lots of slots.Chassis:Front panel is very clean and is in excellent condition, no scratches or marks. External case is clean with some normal wear and tear, some aluminum shows through the paint in wear spots on the edges, but it’s generally in excellent condition for its age. Bottom panel has some light scratches in the paint..
Rubber feet were replaced.Front Panel:Power switch on front panel has a dab of RTV on contacts for safety. A few LED have been replaced.
Very clean with some normal wear and tear.Reference:(1) http://www.s100computers.com/(2) https://groups.google.com/g/s100computers(3) http://www.s100computers.com/My%20System%20Pages/8080%20CPU%20Board/8080%20CPU%20Board.htm(4) http://www.s100computers.com/My%20System%20Pages/Console%20IO%20Board/Console%20IO%20Board.htm(5) https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=&ved=2ahUKEwjMwcfX_djxAhUP-Z4KHdm3CMY4ChAWMAN6BAgCEAM&url=http%3A%2F%2Fvintagecomputer.ca%2Ffiles%2FProcessor%2520Technology%2FProcessor%2520Technology%2520MB-1%2520Mother%2520Board%2520Technical%2520Manual.pdf&usg=AOvVaw1VG6QRGrmpDTybgX3i_KLZ(6) http://www.retrotechnology.com/herbs_stuff/d_altair.html(7) http://ferretronix.com/march/altair/
This listing is for a vintage 1975, MITS Altair 8800 Computer. Serial No. 223726K.
Cosmetically this computer is in very good condition. No dents. No deep scratches. A few scuffs here and there.More photos at: https://photos.lafleur.us/Altair-8800/
This Altair 8800 has been used for a few year in an exhibit for demonstration of early computing technology. It currently uses a “Moder...n S100-group 8080A CPU boards” (1) (2). It boots CP/M 2.2, from an SD card and support an external VGA display, with an IBM style keyboard, and with two serial ports.(Display and Keyboard are not included)
It include a Josh Bensadon S100 8080A CPU (3), card running CP/M 2.2 from an SD memory card with a S100 group VGA console I/O (4), for supporting an external VGA display and IBM style keyboard.Connectors for the external VGA, keyboard and two serial ports are extend to the real panel of the chassis.When I receive this unit many years ago, it came with the boards and items listed below. I have never powered up or tested any of the original boards that I received with this unit. Nor have I tested or used any of the 8in floppy disk. There yours to explore!Most of the changes that I or the previous owner made can be reversed to bring it back to almost100% MITS original.Altair-MITS 8800, S/N 223726KExisting Original Boards:Altair-MITS, 4K Static Memory.
Altair-MITS, 8800 CPU, Rev 0.
Altair-MITS, Serial-TTL.
Altair-MITS, 88-2 SIO, Rev 0.
S100 Sound Effects, 1980 DRC/BEC.
S100 64K Static Ram, COEX.
Processor Technology 16K Memory, 1976.
Seattle Computer, 16k Memory 24-101c, S/N 6166.
Seattle Computer, 16k Memory 24-101c, S/N 294.
Solid State Music 2k/4k Eprom (with some Eproms installed).
Solid State Music, Prom programmer, 1978, PB1, 1996.
Godbout, CompuPro CPU-Z.
Godbout, CompuPro Disk1.
Votrax SC-01A Speech Synthesizer board.
Two unknown wire-wrap boards.Manuals:Three binders with original Altair-MITS manual with some supplements, original manuals for most of the boards. Some extra misc. documentation.Disk:Many un-tested 8in floppy disk, about 5 boxes or so.
I have NOT made any inventory of them, nor have I tested or used any of them.(There are NO floppy disk drives with this system)Power supply:It’s as I received it, with an external 25amp bridge rectifier for the +8v supply.
I updated all capacitor and replace with same size units, but with higher voltage and capacitance for better performance and reliability.
I replaced the dead fan.
For safety, I added a primary power fuse socket in power supply area, to replace open fuse socket, I also added a protection cover over power terminal strip.
Older power distribution wires were replaced.Mother Board:It’s as I received it with a Processor Technology MB-1 (5), terminated mother board. A few slots look to need some TLC, but there lots of slots.Chassis:Front panel is very clean and is in excellent condition, no scratches or marks. External case is clean with some normal wear and tear, some aluminum shows through the paint in wear spots on the edges, but it’s generally in excellent condition for its age. Bottom panel has some light scratches in the paint..
Rubber feet were replaced.Front Panel:Power switch on front panel has a dab of RTV on contacts for safety. A few LED have been replaced.
Very clean with some normal wear and tear.Reference:(1) http://www.s100computers.com/(2) https://groups.google.com/g/s100computers(3) http://www.s100computers.com/My%20System%20Pages/8080%20CPU%20Board/8080%20CPU%20Board.htm(4) http://www.s100computers.com/My%20System%20Pages/Console%20IO%20Board/Console%20IO%20Board.htm(5) https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=&ved=2ahUKEwjMwcfX_djxAhUP-Z4KHdm3CMY4ChAWMAN6BAgCEAM&url=http%3A%2F%2Fvintagecomputer.ca%2Ffiles%2FProcessor%2520Technology%2FProcessor%2520Technology%2520MB-1%2520Mother%2520Board%2520Technical%2520Manual.pdf&usg=AOvVaw1VG6QRGrmpDTybgX3i_KLZ(6) http://www.retrotechnology.com/herbs_stuff/d_altair.html(7) http://ferretronix.com/march/altair/
