Ethan Dicks wrote:
>
>Does anyone here have any experience with reading VMS BACKUP tapes
>with tapetools? Can you share your observations? I haven't yet tried
>reading the files - I know there were some VMS BACKUP extractors in C
>years ago, and I've even used them, but I'll probably have to re-find
>and rebuilt them. I could also fire up simh and VMS, but at the
>moment, my VMS install CDs are somewhere else.
I'm actually in the middle of doing this also. I've been working on
some tools to catalog and extract thousands of tapes, most from obscure
operating systems (ITS, Genera) and some from not-so-obscure (Unix,
VMS, TOPS-20).
I found a program recently "vmsbu.c" which seems to work. I made some
small mods to it to handle extracted files from images.
Basically I have tape image files written in the form of tapetools.
(be careful because I think tapetools-0.4 will not pad blocks and
tapetools-0.6 will; I have a program which will analyse images and
fix this if needed)
If you take a vms backup image and run tapeextract you end up with a
small file (the 'label file') and a big file (the backup). I modified
vmsbu.c to allow you to specify both files and then generate a TOC
and/or extract the files.
I'd be happy to put these program on my web site if you'd like them.
-brad
Does anyone here have a Sun keyboard interface converter they want to
sell, such as a Sun X465A or Ultraspec 5167? Should convert PS/2 keyboard
and mouse for use on an older Sun system.
Mike Loewen mloewen at cpumagic.scol.pa.us
Old Technology http://ripsaw.cac.psu.edu/~mloewen/Oldtech/
[I feel like I should be holding a cup of coffee and saying, "Hello, My
name is Brad and I have several unibus 11's..." :-)]
I want to rack up my 11/34a and 11/44. Neither came with rack slides.
The 11/34a has a long silver plate on the side with little "T handles"
in the front (some sort of release).
The 11/44 has some big oddly-round shapped thing on the sides, obvious
to allow it to be rotated after being pulled out on it's slides.
Both look like they want some sort of specialized slide.
Can someone give me a list/idea/pointer to what hardware do I need? Is
this stuff I can find or is it hard to find?
(now that I think if it, I should probably go look at some of the pdfs to
see if I can figure it out from that)
thanks!
-brad
>
>Subject: RE: Building M8027 hookup
> From: "a.carlini at ntlworld.com" <arcarlini at iee.org>
> Date: Wed, 07 Dec 2005 08:39:45 +0000
> To: "'General Discussion: On-Topic and Off-Topic Posts'" <cctalk at classiccmp.org>
>
>Allison wrote:
>
>> I have most of the microprocessor handbooks, nterfacing handbooks and
>> the DEC Field service guide, NADA!
>>
>> The LAV-11 is limited to LA180, the LPV-11 is configurable for LA180
>> I've used both for "other" though the LAV-11 needed a few red wires.
>
>I'm late to this discussion so I'm not sure exactly what
>is needed. The LSI-11 Systems Service Manual has a page or
>two on both the LAV11 and the LPV11 (and I promise to start
>uploading it all to manx tonight ...).
>
>The LAV11 uses a BC11S cable for the LA180 and a 7009087 for
>Centronics models (101, 101A, 101D, 102A and 303).
>
>In the case of the LA180/BC11S, the P2 end of the cable attaches
>to the LA180. You also need to fiddle with the LA180 jumpers and
>the LAV11 jumpers. The LPV11 is the replacement for the LAV11.
>
>If what is really needed is the pinout of the BC11S, then
>none of this will help (unless knowing the cable type helps
>- there seems to be one place on the net selling these).
>
>Antonio
What is missed being late is the printer at the end is not a DEC
LA series or DataProducts. He wishes to use a PC compatable
(centronics) printer. Thats doable but the cable is not DEC
stock though one could be modified to match the pinout.
Allison
All this talk about the PDP-10 reference card reminds me that I have
misplaced my copy of the PDP 11/44 system/console reference card. It was
a white trifold arrangement, as I recall, printed on both sides. Anyone
got one they'd be willing to scan in?
Mike Young
young at ecn.DIESPAMDIEpurdue.edu
Disclaimer: all of this is based on what I heard/found out while looking at getting one
Not a bad machine, as long as you want to run OS/400 and (generally) program in RPG. IBM never released any information about programming the actual hardware, just the software middle-layer (can't remember what it's called just now). The new machines could possibly be inferred, as they use PowerPC/ RS64 chips, but that may or may not help you because the other logic is undocumented.
CISC AS/400s are an interesting architecture, no hardware memory protection, it's all taken care of in software.
BIG GOTCHA- you need to make sure your machine comes with not only the OS, but also the mashine-specific intermediate layer software. Unless you have a friend at IBM, they may be happy to give you a replacement in return for much cash, or they may do the snooty Maitre d' thing . . . and OS/400 is rumored to lock itself after a certain period of inactivity as well.
In short, it sounded to me like a 50/50 chance of having something cool or a nightmare, so I let the opporitunity slide.
>
>Subject: Re: Building M8027 hookup
> From: Useddec at aol.com
> Date: Tue, 06 Dec 2005 20:01:54 -0500 (EST)
> To: cctalk at classiccmp.org
>
>Aren't the pinouts in the handbook? I think the LAV11 (M7949) was for the
>LA180 only.
>
>Paul
I have most of the microprocessor handbooks, nterfacing handbooks and
the DEC Field service guide, NADA!
The LAV-11 is limited to LA180, the LPV-11 is configurable for LA180
I've used both for "other" though the LAV-11 needed a few red wires.
I've done it but the last time was back before the letters went to magenta.
Allison
On Dec 6 2005, 18:00, woodelf wrote:
> margin. I also feel safe with new cap rather than a patched one.
The "new" capacitor that's been sitting on the supplier's shelf for a
year or two probably still needs reformed. Don't confuse heat damage,
which makes capacitors dry out, with aging which causes breakdown of
the oxide layer. Electrolytics only retain their proper
characteristics when operated regularly.
--
Pete Peter Turnbull
Network Manager
University of York
listmailgoeshere at gmail.com wrote:
> You may remember the big stack of HP85s/HP86Bs I pulled from a
> dumpster a few months ago.
>
> Googling for the service manual hasn't been productive.
something similar to an assembly-level repair for the HP-85
may be found at:
http://www.series80.org/PDFs/HP85-RepairCourse.pdf
This is guide designed to teach repair technicians how to service the
HP-85A and HP-85B Personal Computers.
For the HP-86 you can find the assembly-level repair manual at:
http://www2.akso.de/files/series_80/Assembly_Level_Service_86B.pdf
but I think the quality of the scan leaves much to be desired.
Also you can find Tony's schematics for the 86B at:
http://hpmuseum.net/document.php?hwfile=719
Best Regards
**vp
>
>Subject: RE: Cap reformation question
> From: "Joe R." <rigdonj at cfl.rr.com>
> Date: Tue, 06 Dec 2005 21:48:03 +0000
> To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org>
>
>At 06:25 PM 12/6/05 -0600, you wrote:
>>I take a bench power supply and a resistor and bring the caps up that way-
>sometimes you have to disconnect a wire or two, but not always, and the
>resistor gives you a degree of safety a straight variac wouldn't.
>>
>>
>
> That's what I was thinking of doing. I keep a bunch of HP adjustable
>voltage/ adjustable current supplies around and they've come in handy for
>LOTs of different things. (I used one tonight to recharge and test some
>lead-acid batteries for my HP 5315 Freq meter then used to same supply to
>manually drive the VCO LO in a spectrum analyzer that I'm working on.)
>
> Q: How high of a voltage do you use the reform the caps? I'm wondering
>if it's necessary to apply full (or nearly full) rated voltage or if
>they're fully reformed at say 5 VDC. Has anybody done any testing in this
>area?
>
> Joe
They need to be formed to at least the working voltage, it's better if
you can go closer to the rated voltage.
My trick has been a low current (120V pannel lamp) in series with whatever
supply was needed/handy. The lamp (under 1W) will limit current flow
and they are cheap.
Switch mode supplies are very risky at below rated voltage as the operating
currents in many (older ones) gies up with decreasing voltage. This are best
carefully, removing the caps and forming them out of circuit may be advised.
Allison
