Here's the guy in India again. I doubt anyone will jump on this offer,
especially after Lawson's incredible tale of Indian customs malfeasance,
but if you do get it, I'm sure it'll make for a very entertaining story.
Reply-to: rajatkakkar(a)rediffmail.com
---------- Forwarded message ----------
Date: Fri, 14 Feb 2003 21:23:15 +0530
From: rajatkakkar <rajatkakkar(a)rediffmail.com>
To: Vintage Computer Festival <vcf(a)siconic.com>
Subject: Re: HP 7970 E spool disk drive
Respected Sir / Madam,
I want to sell the HP 7970 E spool disk drive, as I am not putting it to
any use.
Hence, please guide me regarding the web-sites through whom I can sell or
even donate it to
a person / organisation where it should be put to some good use.
Regards
Rajat Kakkar
--
Sellam Ismail Vintage Computer Festival
------------------------------------------------------------------------------
International Man of Intrigue and Danger http://www.vintage.org
* Old computing resources for business and academia at www.VintageTech.com *
Hi,
A long time ago, Frank McDonnel wrote:
> For 7980s, 1600 and 6250 are standard and 800 is an option.
> 7980A is HP-IB, 7980S is SCSI (single-ended). There's also
> an "XC" option which does in-the-drive compression on 6250BPI
> tapes; I think this option does not coexist with the 800BPI
> option.
I have one of these drives, and am very happy with it. It would
be even better if I had a manual :)
But, seriously. I am (desperately :) looking for this 800bpi
module for the drive; I have the XC option which I'm willing to
remove in favor of the 800bpi module.
Does anyone here have an option part number, or, even better, the
option itself ?
*help* [squeeky-voice scream]
--fred
> There is a Hobbyist License in the works that would allow
> certain versions of the OS's that Mentec has to be run on
> real hardware.
Right.
> Some unfortunate circumstances have held it up though.
Ahh, what excuses do they (Mentec) claim these days, then?
--fred
Henk wrote:
> From an 11/05 pocket guide I know that there exist 3 different
> versions of the 11/10 backplane with distinct differences as to
> in which slots the boards go!
> Sorry, can't be of more help (yet), because I do not have a copy
> of that 11/10 pocket guide booklet.
I actually saw that guide today. The main difference is the amount
of core memory the backplane will support, and, hence, the backplane
slot layout for the system. It is VERY important to know which kind
of backplane you have, otherwise, damage to the boards WILL occur !
You can just slide out the backplane from the cage, and read the ID
on the sticker.
--fred
> > BTW is there a faq about hooking up a VGA monitor to a
> > Vaxstation video connector?
I was able to dump all DEC single-frequency tubes by getting
some IDEK (Iiyama) 17" color monitors which have both VGA and
BNC (3 and 5, SOG supported) ports. Excellent picture, including
GPX/SPX/SPX+ and the PMAG cards!
--f
Forgot a couple of steps.
> to a BNC to HD15M cable
to a HD15F/HD15F gender changer
to a HD15M to BNC video cable
> to a SONY 5 BNC Multisync Monitor
At 02:09 PM 2/14/03 -0500, you wrote:
> > BTW is there a faq about hooking up a VGA monitor to a
> > Vaxstation video connector?
>
>
>I've done it, for testing purposes. IIRC, I used the DEC cable which
>ended in BNC, joined, by using BNC/BNC straight adapters, to a
>BNC to HD15 cable, to a SONY 5 BNC Multisync Monitor ( Sony,
>Radius, Rasterops, HP branded ? whichever is handy at the time).
>Probably only hooked R,G, and B though. The Sonys can accept
>separate sync ( all 5 BNC's connected ), composite sync ( 4 BNC's
>connected ), and sync on green ( 3 BNC's connected ), and will
>autosense and autoswitch to the correct sync type. Never took it all
>the way to a GUI though. Just wanted to get a text screen to make
>sure the box was alive.
>
>
>
>
>
>
>
>
>At 06:51 PM 2/14/03 +0000, you wrote:
>>Anybody have any interest in a VaxStation 3000?
>>Looks clean, no monitor or kbd.
>>
>>BTW is there a faq about hooking up a VGA monitor to a
>>Vaxstation video connector?
>>
>>Regards,
>>
>>
>>George
Hello,
Today a friend of mine acquired a pdp-11/05 from our school's
engineering department. Unfortunately, it isn't in too good shape.
Fortunately for him, I've spent the last three years restoring
(sucessfully!) a pdp-11/45. So I offered to help. However, this machine
is somewhat of a different animal, so questions:
Could someone scan the engineering drawings for an H217C stack?
This is partly for my own edification (I have one such board in my
machine), and partly because of the fact that this "new" pdp-11/05 has no
core with it. Its engineering drawings seem to indicate that it wants
4 or 8kW of core (one or more of H213-H216), *not* the 16kW of a H217.
(Granted, by placing two H214s into a chassis we get 16kW, but I
digress.)
That would have been enough to shut me up, but I looked a little further.
It appears that the H213 (4kW) stack is a proper subset of the H214 (8kW)
stack. The schematics appear to indicate that the H214 has all of
the lines, bus connections, etc. as the H213, plus a few more. Indeed, it
appears that if I were to place an H214 in the machine, but tell it that
it was an H213, it would be fine (and see 4kW of course). Am I right?
If so, the next question is, can I do this with an H217? (Drop in an
H217C, and tell the machine that it's really an H214/H215.) This might
sound like a gratuitous waste of core, which it is, but I happen to have
another core board (not in my machine) that could be used... So anyway,
the engineering drawings would answer this question really fast.
If not, I guess we'll be looking for an H213-H216... :)
Thanks,
Michael Robinson
RPI Electronics Club Vaxherd/PDP-11 Fixer
robinm(a)rpi.edu
As Guy said:
> It's not so much the drawings but the wirelist for the backplane.
> You really need to know which backplane you have.
That is very true!
I appreciate having the scans of the Documation M200 punch card reader
manual available online thanks to David Gesswein, but it just doesn't
compare to having the original manual in your hands.
If anyone has a copy of the original manual and would like to trade,
please e-mail me directly. Thanks!
--
Sellam Ismail Vintage Computer Festival
------------------------------------------------------------------------------
International Man of Intrigue and Danger http://www.vintage.org
* Old computing resources for business and academia at www.VintageTech.com *
