Which Operating System for my DCC-116 E / Entrex 480 / Nixdorf 620 / Data General Nova 1200 clone ?
Dominique Carlier
dce at skynet.be
Wed Sep 26 06:50:12 CDT 2018
Hello AJ
Thank you for your interest in my project ;-)
Unfortunately I was stopped by some technical problems.
As I was studying ways to create bootable tapes for my DCC-166 when it
started to present troubles.
It started with illegible characters (like a bad charset) on the only
operational terminal I have. Despite this he continued to boot from the
Diablo 44.
Then I tried to reinstall from a bootable tape with DIDOS, the operating
system of Nixdorf, and there it does not work anymore.
Is it because the terminal is not properly working? Is it because there
is a problem with the nine track tape? Is the disc of my Diablo 44
altered? Is it all problems are from a PSU problem? I do not know.
I cleaned the tape drive, the disk platter, the heads, I clean all
connectors (boards), checked what I could at the level of power supply.
I still have not found the cause of the breakdown(s).
I have not had the time yet but I am going to create a new topic on
cctalk about this, unfortunately, I already feel that this
troubleshooting will require knowledge beyond my skills.
Well, we'll see ;-)
Dominique
On 25/09/2018 08:01, AJ Palmgren wrote:
> Dominique,
>
> Might you have any updates on your Nixdorf 620 / Entrex 480 system? I
> am quite interested, and it's been a while since I've seen any email
> with these keywords here, from you or anyone.
>
> Someday, it is my hope that I might take a tour of your system in
> Belgium, on my next trip to the region, if you would be open to this.
> I am quite fascinated by this rare dinosaur of a system.
>
> I have begun to archive your work, and everything else I've ever found
> about the Entrex 480 systems here:
>
> http://Entrex480.com
>
> Like your system restoration, it is a work in progress...
>
> Best always,
> AJ
>
>
>
> On Tue, Jan 16, 2018 at 9:52 AM Dominique Carlier via cctalk
> <cctalk at classiccmp.org <mailto:cctalk at classiccmp.org>> wrote:
>
> I understand very well your concerns about sending by mail rare
> data on
> magnetic media. It's a pity that I live so far away (in Belgium),
> even
> if I have not finished to configure my machines, at the end I
> should be
> able to write anything on any media, and concerning magnetic tapes it
> will be from 500 to 6250 bpi.
>
> If one day you find in your stock a communication board for Nova 1200
> that you do not use please note that I am a potential buyer.
>
> In the meantime, I have to find solutions to reopen all my old
> monsters
> to the outside world ;-)
>
> Dominique
>
> On 16/01/2018 15:19, Jay West via cctalk wrote:
> > The 'other Jay' wrote...
> > ----------------------------------
> > Diagnostics for DG systems are notoriously difficult to find. I
> have a few, in listing format.
> > ----------------------------------
> > I have a full official DG-issued/labeled original diagnostic OS
> tape. I do believe it is at 800bpi though. If I had an 800 bpi
> drive (everything I have is 1600-6250) I'd image it for everyone.
> >
> > I have a nice S/130 rack that I was almost finished restoring
> till Bruce Ray stopped responding. It's been sitting in my
> workshop for years now and I may have to just get rid of it. Next
> to it is a pile of about 8 nova 800/1200 cpus (all stuffed with
> boards) that I was going to start on next, but was waiting till
> the S/130 was done. I'd like to get done with them so I can move
> on to other machines that need to be restored... but may have to
> just move them out altogether.
> >
> > I'm wary of just sending the tape through the mail for
> imaging.... maybe I can find someone local with an 800 bpi tape
> drive and eric smith's tapeutils.
> >
> > J
> >
> >
> >
>
>
>
> --
>
> Thanks,
> AJ Palmgren
> http://fb.me/SelmaTrainWreck
> http://SelmaTrainWreck.blogspot.com
> https://www.facebook.com/profile.php?id=100010931314283
> https://www.linkedin.com/in/aj-palmgren-4a085516/
>
>
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