Hi all,
I am looking for advice on some problems that I am observing trying to
read QIC tapes using an Archive Viper.
If you are unfamiliar with QIC tapes, tape transport is done through a
single roller that moves a plastic band in tension with the outside of
a portion of the tape on the reels. Over time, the band will break.
A long time ago, I bought a bunch of the green plastibands to use as
replacement bands. Later I bought a bunch of the clear ones. I was able
to image some tapes with the plastiband replacement but not all (but
rewind and retension works almost every time). Until today, I don't
think I ever tried the clear ones after I bought a bag.
I am preparing for a VCF and need the contents off of some of the tapes
that I have, so I got out the driver and tapes. However, I have been
unable to read anything from the them. The tape will jam up. It seems
like what is happening is that plastiband is not providing enough
tension to move the tape when reading. The tape loses tension and I see
it gather instead of moving along. Sometimes the tape feels stuck to the
posts that turn the tape to be parallel with the heads.
I also tried a clear band for the first time and the tension with that
seems too tight.
What am I doing wrong?
alan
Hi all,
are there any experiences or hints in reviving and repairing Maxtor XT1140 and 2190 drives.
I do have a pile of TI-Expore Bricks. The disc drives do have issues like:
- not spinning up
- spinning up but not recalibrating
- ..
Andreas
I was able to get some newer QIC-150 tapes by 3M and harvested the belts out of them. Dropping the belt into boiling water for 20 seconds revived their tension strength. Ultimately what brought me success though was replacing the posts in the tape cartridge with roller bearings that I purchased at a hobby store. The bearings were meant for wheels on an R/C car. Even with the sticky stuff on the tape, they did not bind up, it required a lot of cleaning of the R/W head though during data restore.
We're trying to netboot a Sun-1. Initially, the machine issues the
following packets (over and over...):
17:23:16.834126 In 00:00:00:00:00:00 (oui Ethernet) ethertype IPv4
(0x0800), length 90: localhost.52483 > localhost.domain: 9273+ PTR?
255.255.255.255.in-addr.arpa. (46)
17:23:16.834158 In 00:00:00:00:00:00 (oui Ethernet) ethertype IPv4
(0x0800), length 118: localhost > localhost: ICMP localhost udp port
domain unreachable, length 82
After a short while (10 seconds?), it gives up (because the ndd server
doesn't recognize it), it times out and then generates the following
packet:
17:23:26.333093 B 02:60:8c:03:40:50 (oui Unknown) ethertype IPv4
(0x0800), length 64: 0.3.64.80 > 0.0.0.0: nd 28
Where, of course, the ...:40:50 is the MAC address in the source address.
Does this ring a bell with anyone? n.b. This seems to pre-date RARP,
so any insight would be valuable.
T
I recall I trusted the Stanton geometry specs and had success with my 2372. Was working great until power supply blew. I used a QD33 and an SC41 just fine so I think you’re on course to success.
Jake
> On Oct 13, 2015, at 02:54, Josh Dersch <derschjo(a)gmail.com> wrote:
>
> Subject line covers it; the M2372K manual isn't on Bitsavers (the 2382K is, but it's significantly different) and all I've found is this covering the basics, and I'm not 100% sure it's correct:
>
> http://stason.org/TULARC/pc/hard-drives-hdd/fujitsu/M2372K-824MB-8-0-FH-HSM…
>
> Anyone have this manual? Can you confirm that the settings listed on stason.org are valid? I'm trying to get this drive to format using an Emulex UD33 (UNIBUS SMD) controller, and I'm not having much luck. (I'm also not certain that the 2372K isn't too new for the controller; another place a manual would be of immense help.)
>
> Thanks,
> Josh
>
Hey all,
I was trying to track down some kind of image/photo of "what IBM VM/370
looks like" (the operating system)
I tried looking also in the IBM manuals - I'm just not finding much. Some
kind of image of what maybe a remote login looked like, a task process
list, or maybe basic file/folder management commands, or how an editor or
programming worked on that system.
There is a bit of media with a VM/370 emulator, but I wasn't sure how
accurately representative it was of a kind of "look and feel" of that OS.
What I'd need is maybe photographs of teletype printouts? This was still
early 1970s. Which is understandable not much of that was probably kept
around.
Thanks, just digging around - like wasn't sure if VM/370 was still
six-character filename limited like earlier 60s era OS's, or whatever
characteristics it had in operating it.
-Steve
*Just a reminder*
The next Glen Ellyn CCC chat and repair meeting will be held on March
28th, 2026.
Anytime after 2PM until we all get to tired to solder and talk.
We will order Pizza around 5:30pm.
As usual Beer and Pop will be provided.
I look forward to seeing you all there.
385 Saint Charles Rd
Glen Ellyn, IL 60137
+1 (773) 414-1044 (Cell)
The 1800 used the 1130's instruction set but from what I heard the CPU was
faster. (Integer multiply and divide in particular). And it had some other
differences, e.g. index registers were real registers, not the first three
locations of core. Also it had a couple more instructions, and the ability
to make sections of core readonly once initialized -- I believe this was
done with toggle switches rather than under software control. It's been a
while. From what I wrote on ibm1130.org/today, apparently at one time I
believed Mike Ross and Bob Rosenbloom have 1800's
I have never found a copy of MPX either as a distribution card set or disk
image. Would LOVE to have it so we can try it out on the ibm1130 simulator
in simh
Brian
