I have a PDP-8/A with an RL-01 drive which does not want to boot and am
looking for advice ...
The machine (outlined at
http://www.technology.niagarac.on.ca/staff/mcsele/pdp8a.html) is
functioning properly but 'hangs' when the bootstrap is exectured for the
RL-01 drive (the FAULT light blinking briefly then extinguishing). The
RL-01 disks were last booted about 10 years ago and were supposedly
bootable then (presumably with OS/8).
Stepping-through the bootsrtap code, the program hands on the READ
HEADER function. A diagnostic program was written to do a READ ERROR at
that point and apparently a DCRC error is occurring (AC=4401 in response
to the RRER instruction). A GET STATUS was also run and the drive
operation verified, but apparently there is still a CRC error.
I have outlined all tests perfromed on that web page above (including
status words in the silo after the GET STATUS command).
If anyone has experience with such a drive I'd love to hear your
thoughts on it! I have tried two supposedly bootable cartridges and
received the same results.
Thanks ... Mark
Professor Mark Csele
Niagara College, Canada
300 Woodlawn Rd., L-8
Welland, ON, L3C 7L3
(905) 735-2211 x.7629
E-Mail: mcsele at niagarac.on.ca
URL: http://technology.niagarac.on.ca/people/mcsele
Author of "Fundamentals of Light Sources and Lasers", Wiley, 2004
Just thought I would close this thread with a report of my success
getting these uVAXen MFM drives imaged.
Thanks to much good advice for list members, I have successfully imaged
all drives.
I don't have VMS to do a VMS netboot (sorry Allison :) ), so I ended up
netbooting NetBSD from a Debian box via MOP/BOOTP/NFS onto each uVAX.
Once I had NetBSD installation kernel alive, I configured the network IP
and did an NFS mount back to the Debian box. After that, it was a
simple matter to 'dd' the uVAX's drive to a file on the Debian, and from
there to a CD for long term storage.
As it turns out, all four of these vaxen had extremely minimal ULTRIX
setups loaded, not VMS, which is a shame. I was hoping for a VMS setup
to play with. Well, I'm in the process of getting my OpenVMS licenses,
so all is not lost.
Thanks everyone for their suggestions, and patiently "reminding" me that
MFM drive formats aren't portable.
Jared
Dear Sir:
A friend gave me an old Fujitsu Denso B14L-0300-0018A power supply from
which some of the parts have been removed but that still contains the power
transformer and some other pieces. I would like to use what I can from the
power supply to make a regulated power supply for an amateur radio
transceiver.
I have been looking on the internet for information regarding the Fujitsu
power supply and yesterday I found your request for information. Were you
able to find any information regarding the schematic for the power supply?
If so, I would really appreciate it if you would let me know the source or
pass on the information you obtained. It seems to be quite hard to find.
Yours sincerely,
Allen Wootton
> Then again, the 8870 mentioned in Albetos original question is
> a small multi user system for office tasks.
Is there a document that describes the various Siemens Siemens/Nixdorf
computer families, with release dates?
The late IBM-compatibles have some documentation, but there isn't anything I
see on the web that gives the progression from the 4004 forwards, or the
Siemens 16-bit process control systems from the 70s.
--
It would be a lot easier to identify the pack if there was a picture, or at
least a description of size, #platters, etc.
Please see http://www.vintage-computer.com/vcforum/showthread.php?t=3696
for more details and pictures.
Included are:
DEC VS46K Vaxstation 4000 60
DEC RZSX Storage Expansion
DEC RZ55 Hard Drives
DEC TK50Z Tape Drive
DEC TLZ04 Tape Drive
DEC RRD40 CD Drive
Plus a big monitor and DEC keyboard along with SW tapes and CDs and
enough cables to get the whole thing going.
Everything was working when I played with it three years ago just
before it all went into storage.
It's all boxed now in two large/heavy boxes - the monitor isn't yet
boxed. I'd really prefer local pickup since I can't guarantee that
FedEx/UPS won't hose the system in transit but I'm willing to repack
it if need be into more smaller boxes and I can also just bring it to
a pack and ship place at the buyers convenience.
I can exclude the monitor from the shipment to save on costs, but
you're still talking about a heavy load.
Anyway, I'm looking to get $100 or so plus shipping for the system
which I think is a fair price but I will donate to an appropriate
museum or non-profit. Please let me know if you're interested.
--
Erik Klein
www.vintage-computer.comwww.vintage-computer.com/vcforum
The Vintage Computer Forums
I am trying to get an Alpha Station LX300 to run OpenVMS. When I power the
machine up, it appears to be using the AlphaBIOS and it wishes to use
Windows NT.
Is it possible to update the BIOS to use SRM so that I can install OpenVMS,
or is this machine doomed to run WindowsNT?
Thanks for any information you can supply.
--barrym
>
>
>I need information about a disk unit Siemens-Nixdorf S400.
>> To what level of detail do you need?
>
>
>> The early S400 series were rebadged RCA Spectra 70's
>> It is probably similar to either IBM 2311 or 2314.
>
>
I do not see how this could be the case since Siemens-Nixdorf did not
exist until Siemens bought Nixdorf in 1990.
From what I have been able to tell, the SNI S400 was a big iron number
cruncher from the '90s.
alan
Contractor at SNI Neuperlach, 1991-92
John opined
>More like, if you don't want to spend the money to have some
>obscure data recovered, give it to a criminal who's about to be busted.
So the US people should watch out - law enforcement will just grep the list for the
equipment they want, and threaten prosecution under the copyright or terrorism
laws "unless you want to cooperate".
Hello,
While browsing the classiccmp archives I found an email from Fred van Kempen
about the boot images for DECserver 700-16 terminal servers (wweng1.sys
wweng2.sys) and this email address in it.
I'm not sure if I'm going the right way here, so please excuse me if I'm
wrong.
I just got my hands on DECserver 700-16 but I don't have the boot image and
I was hoping you could maybe forward me a copy of the image!
Thanks a lot!!
Best regards,
Peter Smit
Commodore 64 Confuses Austrian Police
From slashdot.org article http://slashdot.org/articles/06/09/05/2028258.shtml
[Reproduced entirely below]
Posted by kdawson on Tuesday September 05, @07:59PM
>from the at-least-it-wasn't-a-trash-80 dept.
It's funny. Laugh.
toomanyairmiles writes, "It seems that Wolfgang Priklopil, the
communications technician who kidnapped Austrian pre-teen Natascha
Kampusch, relied on a Commodore 64 as his primary machine. Interestingly
this is presenting some problems to the Austrian computer forensics people.
Major General Gerhard Lang of the Federal Criminal Investigations Bureau
told reporters it would 'complicate investigators' efforts' and would be
difficult to transfer the files to modern computers 'without loss.' Could
this be the latest in the criminal world's security strategy? Can we expect
to see Spectrums, Archimedes, and Atari STs turning up in police
investigations soon?"
[Several hundred clueless and a few clueful comments follow-- see the
article on slashdot.org, op. cit.]
[SF] Laws change depending on who's making them, but justice is
justice.--Odo (A Man Alone)
--... ...-- -.. . -. ----. --.- --.- -...
tpeters at nospam.mixcom.com (remove "nospam") N9QQB (amateur radio)
"HEY YOU" (loud shouting) WEB ADDRESS http//www.mixweb.com/tpeters
43? 7' 17.2" N by 88? 6' 28.9" W, Elevation 815', Grid Square EN53wc
WAN/LAN/Telcom Analyst, Tech Writer, MCP, CCNA, Registered Linux User 385531
