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@classiccmp.org <mailto:cctalk@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
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