IMSAI 8048 Control Computer is mostly alive.

[Chartbundle]

I acquired an IMSAI 8048 Control Computer a while ago and finally got around to burning the missing EPROM with a hex file I obtained from a nice person in Germany. And I'm happy to report it's mostly alive. One RAM chip, maybe more, it stops on first error, has some bad spots. And one of the relays is missing about half of its control transistor. Otherwise the display and keyboard look great. Not sure what the plan is, going to see if I can find some RAM replacement, ideally original and then might sell it once I verify it all works.

But for now:

 

[ajacocks]

Chartbundle welcome to the forum!

- Alex

 

[ocarvallo]

Hello Chartbundle...still have the file you used to burn the CC eprom?...I have the monitor code in pdf but the hex dump would save quite a bit of time!
I worked with the CC back in 1978 when I did my MS thesis around it.

Now I am trying to collect all hardware and software info and perhaps do a clone using an 8031

 

[Bruce Tomlin]

This page http://www.punsmann.de/retro/imsai-8048.html has it linked as a hex file http://www.punsmann.de/retro/files/imp48rev2.hex