Previous Thread
Next Thread
Print Thread
Page 2 of 10 1 2 3 4 9 10
Joined: Feb 2008
Posts: 106
J
Senior Member
Senior Member
J Offline
Joined: Feb 2008
Posts: 106
OK, just safely brought home this beauty with Tuxie's help. Thanks a lot!

It starts up and displays "insert monitor disk"

I haven't looked inside yet to see it the rom(s) are socketed, but is there anyone with the right equipment/knowledge to dump 8" diskettes and rom chips?

Joined: Apr 2005
Posts: 618
Likes: 6
Senior Member
Senior Member
Joined: Apr 2005
Posts: 618
Likes: 6
The guys at kryoflux.com can probably dump the 8" disks... they have some drives and the knowledge of ancient disk formats smile

Getting the ROMs dumped should be the easier part, virtually anyone can dump chips from that era...

-Darkstar

Joined: Aug 2004
Posts: 1,458
Likes: 9
Very Senior Member
Very Senior Member
Joined: Aug 2004
Posts: 1,458
Likes: 9
It would be nice to see this computer working in MESS... smile

Joined: Feb 2008
Posts: 106
J
Senior Member
Senior Member
J Offline
Joined: Feb 2008
Posts: 106
OK, I took some half-assed pics of the pcbs:

PCB photos

Can you identify anything dumpable there? There's an additional PCB with a socketed chip on it which I can't reach with the camera. It's 24 pins with a sticker that says: "104521 F".

The 8" floppies are:

*Microsoft Basic version 521 - 2 copies, 1 with the seal sticker intact
*Microsoft Multiplan version 105, 1 diskette
*Microsoft Basic Compiler version 530, 2 copies both with seal sticker intact
*Microsoft Fortran-80 version 348(?), 1 diskette
*Microsoft Cobol version 466, 2 copies both w intact seal sticker

Manuals/documentation:

*for the above mentioned software
*owners manual for the computer
*CP/M MP/M
*Pascal MT+
*BDS C User's guide

Then there was a box full of 8" floppies which I forgot to bring frown
I will probably go and pick it up later.

Joined: May 2004
Posts: 1,016
Likes: 130
D
Very Senior Member
Very Senior Member
D Offline
Joined: May 2004
Posts: 1,016
Likes: 130
Important would be something like a technical manual, anything of that sort in there?

Joined: Apr 2005
Posts: 618
Likes: 6
Senior Member
Senior Member
Joined: Apr 2005
Posts: 618
Likes: 6
Looks like everything that is required to emulate that computer is socketed: EPROMs, PALs/GALs, and one big chip that I couldn't identify. Or, to put it the other way, everything that is socketed (again, probably with the exception of that big chip) needs to be dumped ;-)

The IC you mentioned (on the additional PCB) is probably an EPROM too, so this also needs dumping.

The manuals are a nice find as well, the guys at bitsavers.org are probably interested in them, you can probably get them scanned and preserved by them as well

-Darkstar

Joined: Feb 2008
Posts: 106
J
Senior Member
Senior Member
J Offline
Joined: Feb 2008
Posts: 106
There's a "Specifications & Installation Guide" with schematic drawings of the PCBs and other stuff. I'll scan that later and upload. I'll be willing to scan anything that there is interest in, in time.

Joined: Feb 2008
Posts: 106
J
Senior Member
Senior Member
J Offline
Joined: Feb 2008
Posts: 106
Originally Posted by Darkstar
Looks like everything that is required to emulate that computer is socketed: EPROMs, PALs/GALs, and one big chip that I couldn't identify. Or, to put it the other way, everything that is socketed (again, probably with the exception of that big chip) needs to be dumped ;-)

The IC you mentioned (on the additional PCB) is probably an EPROM too, so this also needs dumping.

The manuals are a nice find as well, the guys at bitsavers.org are probably interested in them, you can probably get them scanned and preserved by them as well

-Darkstar

What's the location of that one big chip you mention?

Joined: Apr 2005
Posts: 618
Likes: 6
Senior Member
Senior Member
Joined: Apr 2005
Posts: 618
Likes: 6
Originally Posted by JonasP
What's the location of that one big chip you mention?

P1010038.JPG, on the bottom. It has MOSTEK printed on it, and while I can't identify the number(s) I guess that it's the processor (or a coprocessor) since MOSTEK manufactured mainly CPU clones (and DRAMs)

-Darkstar

Joined: Aug 2004
Posts: 1,458
Likes: 9
Very Senior Member
Very Senior Member
Joined: Aug 2004
Posts: 1,458
Likes: 9
I think it says MK3801N. Unfortunately, that part of the picture is really blurry.

Page 2 of 10 1 2 3 4 9 10

Link Copied to Clipboard
Who's Online Now
2 members (nerd4gw, Cpt. Pugwash), 389 guests, and 2 robots.
Key: Admin, Global Mod, Mod
ShoutChat
Comment Guidelines: Do post respectful and insightful comments. Don't flame, hate, spam.
Forum Statistics
Forums9
Topics9,372
Posts122,599
Members5,085
Most Online1,529
Jun 7th, 2025
Our Sponsor
These forums are sponsored by Superior Solitaire, an ad-free card game collection for macOS and iOS. Download it today!

Superior Solitaire
Powered by UBB.threads™ PHP Forum Software 8.0.0