> Do you know anything about "storage cards" made by National Memory
>Systems? There's one of those stuck in it. Assy # 980100996.
I don't... I'm sure someone else here does...
> Here's a list of what else I found in it:
>
>M7954 GP-IB interface
>M7270 LSI-11/2 16 bit CPU (2 of them)
>M9400YA 120 Ohm terminator w/ refresh and floppy boot
>M8400CF 16K word 16 bit MOS RAM
>M7940 Serial Line Unit (SLU, Async)
>M7946 RX01 floppy disk controller
>M7264 11/03 Proccessor w/ 4K work MOS RAM.
Three processor boards?! You only need one...
> Here's a list of the docs that I got with it:
>
>Introduction to RT-11 (missing some pages)
>Informer Computer terminal model D-301 Maintenance manual
>DECLAB Fortran Extensions User's Guide & update notice 1
>LSI-11 WCS User's Guide
>RT-11 Software Support Manual
>RT-11 Documentation Directory
>RT-11 Fortran VO1C
Which version of RT-11 are the docs for?
> I have a couple of more questions. What did they use the GPIB interface
>for? Is it just an instrument interface or did it connect to some of the
>system devices like it did with the PET and HP computers?
It is an instrument interface... whether one of those instruments
could be another computer, I don't know...
>Are the LSI-11/2 CPUs needed in this system or does the 11/03 processor
>replace them?
Depends on your needs... the 11/03 has memory, the 11/2's don't. The
11/2's take up less room. Both need a console interface board.
>Is there any reason to have to 11/02 CPUs in it?
You listed three... but no, no reason for 2 in a *working* machine.
But the person who you got them from may have simply put them in the
backplane to prevent damage, in which case it doesn't matter what's
in it...
>I didn't get a powe supply with this, can I make one up using the
>voltages shown on the card cage or is there anything specail that I need
>to know about? Do the voltages have to be applied in a certain sequence
>or anything like that?
What kind of backplane did you get? Someone here may have a spare
so that you can get it working... Other than that, you might be
able to get it working if you cobble something together...
Megan Gentry
Former RT-11 Developer
+--------------------------------+-------------------------------------+
| Megan Gentry, EMT/B, PP-ASEL | Internet (work): gentry!zk3.dec.com |
| Unix Support Engineering Group | (home): mbg!world.std.com |
| Compaq Computer Corporation | addresses need '@' in place of '!' |
| 110 Spitbrook Rd. ZK03-2/T43 | URL: http://world.std.com/~mbg/ |
| Nashua, NH 03062 | "pdp-11 programmer - some assembler |
| (603) 884 1055 | required." - mbg |
+--------------------------------+-------------------------------------+
Allen Rose, writing as "Mindy Fuchs" <tomeditf(a)worldnet.att.net> wrote:
> Last year you sent out a request for info about HP7475A Plotter
> pens. Like you, I am now trying to get one working. DId you find a
> source for pens? Also, do you have any idea where I can get a
> plotter manual? Even xerox copies of the important pages would
> help. ALso, any idea what cable is required. Thanks.
As other folks have written, the pens come up on ebay sometimes.
They might be OK -- HP sold them with expiration dates and I don't
really know how well they keep, although (a) back in the 1980s we
didn't pay much mind to the expiration date on the package and had
no cause to regret it and (b) a friend who has purchased pens via
ebay has said that at least some of them were OK.
The pens do dry out if left in the plotter though, even if they are
capped by the plotter or the pen carousel. I would not expect pens to
work unless they are in sealed packages.
HP no longer sells pens. Last time I looked their web site referred
users to Koh-i-noor for pens and ink, and I think I managed to work out
that Koh-i-noor had refillable ink pens as well as new felt-tip pens.
The 7475A is tricky and you may need more than pinouts for its port,
because if it's an RS-232 flavor, the DIP switches let you tell it
whether to behave like a terminal device or as an eavesdropper on an
existing terminal device's connection. To use it from a PC based
application you probably want the former; the latter is useful for
host-based graphics applications that are accessed from a terminal
but know of the existence of the eavesdropping plotter.
-Frank McConnell
On Mar 9, 22:34, Jim Strickland wrote:
> > >3. can someone answer conclusively for me whether the vaxstation
expects
> > > the disk to have parity enabled? The lists I've read don't seem
very
> > > sure.
> >
> > Not quite sure what you mean here. It expects 512k blocks, if you want
to
> > boot off the install CD.
That means that only a few CD-ROM drives will be bootable, such as Toshiba
3301, 3401, and a few old Sony drives -- and all of those will need to be
set up correctly. On the Toshibas, that means a minor internal
modification, unless you get one that was previously used on a Vax,
Sparcstation, or SGI.
> > However, I believe it will read CD's in standard
> > drives once the system is up and running.
Which suggests it knows to issue a SCSI command to set the blocksize after
booting, which almost all SCSI-2 CD-ROMs obey.
> I should clarify. Does it expect its internal hard disks to have parity
turned
> on or not?
I don't know for a Vax or VMS, but it shouldn't do any harm to disable it
on most devices. Most devices always generate the parity, and the setting
only determines whether they check it on input.
--
Pete Peter Turnbull
Dept. of Computer Science
University of York
Arfon Gryffydd <arfonrg(a)texas.net> wrote:
> Anyone know a where I can find an old RS-232 Acoustic coupled modem?
Keep looking, they turn up.
> How about the specifications for paper-tape (i.e. hole spacing, paper
> width, etc.)?
Hole spacing is 0.1". 8-level tape is 1" wide, with 3 holes, then a
smaller-diameter sprocket hole, then 5 holes. There also exist 7- and
5-level tapes which are simply narrower (3+1+4, 3+1+2), and maybe also
a six-level tape but I don't know what used it. Somewhere I have what
looks to be a parallel tape reader with a knob that rotates
different-width guides into place, but it has no manufacturer
information.
-Frank McConnell
-----Original Message-----
From: Cameron Kaiser <ckaiser(a)oa.ptloma.edu>
To: Discussion re-collecting of classic computers
<classiccmp(a)u.washington.edu>
Date: Thursday, 11 March 1999 2:22
Subject: Re: Burst Nibbler?
>::Have a friend that has acquired a heavily optioned up Commodore 64.
>
>Whee, the best kind. :-))))
If you say so :^)
>(This is coming from memory, apologies for any inaccuracies.)
Any port in a storm....
>Dolphin DOS is actually a set of ROM upgrades, like JiffyDOS. As long as he
>has the matching Kernal ROM in the 64, and the matching DOS ROM in the 1541
>(check the board, they should be labeled), he should be golden.
Seems to be the case. (I should point out I haven't seen the machine/drives
yet, this is on a verbal description)
>The author is, fortunately for you, an Aussie -- his name is David Huggins.
Good grief. A miracle.
>Unfortunately, I don't have a current contact address for support.
I'll put out some feelers. Someone will know...
>Burst nibblers are simply GCR copy programs. You won't need one for this
>drive (and I don't think the 1541 could support it anyway, since burst
>transfer is a 1571<->128 serial trick).
Hmmm, I'm starting to wonder exactly what this guy has. He mentioned he
also had a 128. He might have this in a 1571 instead of a 1541. He's
pretty vague when asked for numbers. He said he had a disk drive with it, I
asked if it was a 1541 and he said, yeah, sounds like it.. So maybe it
ain't.
I might sit on this until he brings the machine in to the shop. He's very
limited in knowledge, so me might have fed me some duff gen.
> Where does it say he needs the burst nibbler? I think someone has their
signals crossed.
Seems to have come from the previous owner, but this guy might not know the
right questions to ask too.
Or he might have been asking specifically about copying stuff. I'll
clarify this and get back to you.
Thanks for your help...
Geoff Roberts
Computer Systems Manager
Saint Mark's College
Port Pirie, South Australia.
Email: geoffrob(a)stmarks.pp.catholic.edu.au
ICQ #: 1970476
Phone: 61-8-8633-8834
Mobile: 61-411-623-978
Fax: 61-8-8633-0104
Anyone know a where I can find an old RS-232 Acoustic coupled modem?
How about the specifications for paper-tape (i.e. hole spacing, paper
width, etc.)?
On Mar 10, 19:27, R. Stricklin (kjaeros) wrote:
> On Wed, 10 Mar 1999, Pete Turnbull wrote:
>
> > That means that only a few CD-ROM drives will be bootable, such as
Toshiba
> > 3301, 3401, and a few old Sony drives -- and all of those will need to
be
> > set up correctly. On the Toshibas, that means a minor internal
> > modification, unless you get one that was previously used on a Vax,
> > Sparcstation, or SGI.
> Almost any Plextor CD-ROM drive will have a jumper that will enable it to
> be used on a host expecting 512k blocks.
I'd forgotten about the Plextors.
> I understand that many newer Toshiba CD-ROMs will also work equally well
> with 512k or 2048k blocks. As far as I'm aware, of the older Toshiba
> CD-ROM drives only the 3201B (3401B? I forget) is modifiable.
All the newer Toshibas -- and most other SCSI-2 CD-ROMs -- will accept the
appropriate MODE SELECT command. The 3201, 3301, and 3401 all have
internal jumper pads to hardwire the block size. I think the 5401 does as
well. The 3601 and later don't (the pads are there, but they don't set the
block size).
--
Pete Peter Turnbull
Dept. of Computer Science
University of York
Well I tried to sign up with geocities (it banged on me...) they don't seem
to like people using their free service for a storage space for an outside
site:
</Quote>
Please refrain from using your Personal Home Page (free or
GeoPlus), GeoShop or GeoCities Chat and Forum session for the
following activities:
7.Developing restricted or password-only access pages, or hidden
pages or images (those not linked to from another accessible page);
8.Using your home page (or directory) as storage for remote
loading or as a door or signpost to another home page, whether
inside or beyond GeoCities;
</End Quote>
As for Yahoo I could not find where to sign up...
But I like the idea and will be looking around for solutions.
Francois
>Suggestion. Get a free yahoo or geocities web space so you can post this
>info at no out of pocket cost to you. You can put a link to the scans
>from your web site.
>
>Take advantage of what the web has to offer. It doesn't all need to be in
>one place anymore. Think distributed! To the end user its all the same
>anyway.
>
>Sellam Alternate e-mail:
dastar(a)siconic.com
>---------------------------------------------------------------------------
---
>Don't rub the lamp if you don't want the genie to come out.
>
> Coming in 1999: Vintage Computer Festival 3.0
> See http://www.vintage.org/vcf for details!
> [Last web site update: 02/15/99]
>
>>My Dyna Micro came without any chips, they apparently have ben canibalized
>
>I assume you've saved the list I posted the other night, then :-)
The articles have the nomenclature so no problem there
>
>> is there any way that I can obtain a 1702 with KEX???
>
>Since it was posted to the list, I feel I can mail it out to anyone on
>the list who wants it (I'll not post it again since I can't believe too
>many people need it).
Same here got the listing
>
>Then all you need to find is someone with a 1702 programmer (I _must_ get
>mine out) and some 1702 chips. Or I suppose you could stick it into a
>2716 and wire up a kludge-board to link it to the MMD1.
Kludge would work but I would lose the authenticity of the appartus. I'd
much prefer to find a source of 1702 and a programmer :)
>
>-tony
>
