Refurbished IMSAI 8080 48KB Computer w/Many Boards. This is a very good condition IMSAI 8080 computer.
IT appears to be in working condition. It appears to have 48KB of SRAM installed on 4 boards. The computer tries to boot drive A of an attached dual 8 floppy drive Thinker Toys when the RUN switch is activated. I do not have the proper board to test with a terminal. The system appears to have been used in a University setting for a Speech Research Lab.
There is a speech card in this unit and there is a lot of speech related documentation included. The computer was disassembled and blown/wipe dust free thoroughly.
The PSU cleaned and dusted. The main BUS board dusted and air dusted.
The PSU was slowly powered up over 4 days to let the large capacitors revitalize. The PSU is showing voltages a bit lower then a "new" PSU would show for both rails. The 18 volt rail is about 17 volts no load..
And the 8 volt is showing about 7.1 volts no load but the computer does boot with all cards loaded. The front panel LED's all appear to light up. All switch leavers were cleaned. The 2 blue leavers were broken. I was able to replace them with 1 blue and 1 red (see the left front panel).The 2 broken leavers are in a baggy inside the case. All socketed ICs, and there are a lot of them in this system, have been reseated.
All card were blown dust free and the card edges, from top to bottom, were cleaned. The ribbon cables were cleaned. The power and I/O ports were cleaned. The fan and the fan housing have been cleaned.
This computer comes with its original IMSAI owner's manual/binder. It too have been cleaned. There are many additional manuals and documents included for this computer. Many are manuals for the included cards. The cable's pin-out do not match this computer.
The Reset and Run leavers are just a bit loose but work correctly. Boards that are included front to back. TDL The ZPU Rev 1 1977 Z80 CPU Board. IMS Assoc Ic RAM-4A Rev 2 16 RAM Chips.Heuristics Inc Speechlab 1976 Card w/RCA Cable Connection. GODBOUT Econram II 8Kx8 Board X3. Cromemco 16KZ 1977 RAM Card 5 RAM Chips. Cromemco 8K BYTESAVER Rec 2 1975 4 2708 EPROM's. NorthStar Computer Micro Disk Controller MDC-A4 34 Pin.
Cromemco D+7A I-O 1976 44 pin. NorthStar Mico Disk Controller MDC-A4 Card. IMS Assoc SIO Rev 3 1975. TARABELL Cassette Interface Rev D Model 1001. TDL North Star Disk RAM Manual.
Zapple 12K Basic User Manual. Z-Teli Z-80 Text Editing Language User Manual.
Text Output Processor User Manual. Bunch of notes from Illinois State University for Computer. Folder of Personal Notes on the computer. Cromemco 16KZ RAM Card Manual.
Digital Research PL/I-80 Command Summary. WordStar Reference Card Version 3.0.
CP/M Programmer's Reference Guide. Speech Lab Slides and Cassettes. Deluxe Slide Duplicator for 35mm SLR Cameras. Punch Tape Speech Basic Heuristics. 15 5.25 Floppy Disk Copies of various software (including games).Please view photos for physical condition. Keep in mind, that I mainly sell vintage computers and vintage computer accessories. That said even though the box/item may not show damage, the internal mechanism may have been damaged or jarred from a rough truck and/or plane ride. I will work with ALL my customers to resolve the problem. Personally, I do not think that this is an acceptable way to return items. We are not Walmart or Costco that cannot absorb these financial damages. Thank you for your patronage. The item "Refurbished IMSAI 8080 48KB Computer withMany Boards" is in sale since Monday, June 15, 2020. This item is in the category "Computers/Tablets & Networking\Vintage Computing\Vintage Manuals & Merchandise". The seller is "econsaints" and is located in San Jose, California. This item can be shipped to United States.