Data General Eclipse

From: THETechnoid_at_home.com <(THETechnoid_at_home.com)>
Date: Mon Sep 4 13:42:22 2000

You are right about the cpu expansion to a 9300.
The machine does not NEED 240vac to operate. Nearly all MV's were 120volt
except for the very very largest ones. Your's has a set of jumper wires
in the back of the power supply which 'tells' the ps which current to use.
Internally the power pack will split the 240 into 120volt so be careful
and ask before you power it up. I'd hate to see the supply smoke before
you got a chance to play with the machine.

The Eclipse is OCTAL which takes some getting used to....

You are very lucky to get the machine. The other two fellows in the group
who have MV2000dc and MV5000dc machines have thier work cut out for them.
Your machine is a 'standard' eclipse and so can share parts with most
other MV's.

You can also read/write the standard 9track tapes which is very fortunate!
Just let me know and I will be glad to run off a set of install tapes for
networking and AOS/VS II.

The machine is OCTAL! This is really important because the device codes
for boot are octal. usually the machine will boot from device code
(octal) 22 or 24 which usually references the first 9track tape unit. It
will boot from hard disk once you have the OS set up.

You need microcode to get anywhere. I should have the code in my
collection. Getting it on the machine is another story entirely.

Verifying the machine is pretty easy. You boot a diagnostic operating
system called Adex or Ades - they changed the name when AIDS became a
medical issue.... I have several versions. The adex/ades tape contains
microcode for your machine as well as lots of utilities and diagnostics.
I can also run a copy of ADEX for you.

If you can provide the tape media for the copies it would be a big help.
I would need three 7" reels such as the Scotch 700 or blackwatch 700 from
3m, and one 'short' tape. (Two 700's for aos/vs II, one 700' for TCP/IP,
and the shortie for Adex.)

If you don't have media, I'd guess about $20.00 should be enough for tapes
from CPB. I don't have enough blanks to spare. I have several spare
'short' tapes but no 700's to spare.

Because your's is a normal MV, I have several spare cards for it; a
working 2mb ram card, a non-working but fixable 8mb ram card, and a
working 16line serial terminal controller card (IAC16) - not that you need
any more terminal lines ;-) I also have a spare, working tape controller
for a 9track drive. Does your 9track have the reels side-by-side or
over/under? There is a difference between the capacities of the two types
though tapes can be interchanged to a degree.

In <39B1F104.A066CBFB_at_acm.org>, on 09/04/00
   at 02:42 PM, Mike Cruse <mcruse_at_acm.org> said:

>Hi all,

>I just managed to get hold of a Data General Eclipse MV9000. I think it
>has
>been upgraded since the processor card says MV9300. I has over a hundred

>serial ports, three hard drives (ZetaCo), 9 track tape drive, five D211
>terminals
>and three printers.

>I'm looking for documentation and software of any kind for this machine
>but I
>have not found anything substantial searching the net yet.

>Any ideas?

>This machine was apparently the target of a search by the local HAM radio
>clubs for the source of a 125Mhz signal that was triggering the emergency
>signal receivers in Russian satellites. I'm trying to get more info on
>this little
>bit of history this week.

>The machine looks at home next to the PDP8/i. I'm running 240Vac to the
>machine this week so I'll get to see if it works.

>Any DG AOS/VS people out there?

>Mike



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Jeffrey S. Worley
President
Complete Computer Services, Inc.
30 Greenwood Rd.
Asheville, NC 28803
828-277-5959
THETechnoid_at_home.com
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Received on Mon Sep 04 2000 - 13:42:22 BST

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