26 Sep
2018
26 Sep
'18
4:50 a.m.
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
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