On Aug 28, 22:39, Tony Duell wrote:
> > It's over 10 years old, and it's microprocessor-compatible, but
it's an
> > analogue to digital converter chip, not a computer. It's also not
in
> > my spares box, and I need one. Does anyone have a spare? Or a
data
> > sheet?
>
> I can't find a chip (although it sounds familiar for some reason),
but I
> do have a Ferranti data book that covers it. What do you need to
know?
Pinout, and if possible some timing info (conversion time etc) and what
voltage references it needs/has. I thought I had the RS data sheet for
it, but it's gone walkabout.
--
Pete Peter Turnbull
Network Manager
University of York
Hi Folks,
I am not familiar with the old HP calculators.
The local junkyard has a HP 9825A desktop calculator they can't sell
They intend to demolish it next week - is it worth saving it? or is the
world full of it?
It looks complete and has only some minor estetic damage.
gr.
Luc Vande Velde
-----Oorspronkelijk bericht-----
Van: cctech-admin(a)classiccmp.org
[mailto:cctech-admin@classiccmp.org]Namens Fritz Chwolka
Verzonden: donderdag 21 augustus 2003 17:05
Aan: cctalk(a)classiccmp.org
Onderwerp: Re: Anyone have copy of old BBS software
On Thu, 21 Aug 2003 10:05:25 -0400, Cini, Richard wrote:
>Hello, all:
>
> Does anyone have a copy of some old BBS software for the PC
>platform, like WildCat, that I could get a copy of? I'd like to do some
file
>transfer testing among my classic platforms and thought an internal BBS
>would be a clean way to do it.
>
> Thanks.
>
>Rich Cini
Why don't use telemate, procomm or zock and use their internal host
like personal bbs ?
BBSen even here
http://www.eunet.bg/simtel.net/msdos/bbs.html
and here look for telix or telemate
http://www.vectorbd.com/bfd/telecomm/
Greetings from
Fritz Chwolka
<collecting old computers just for fun>
> www.alterechner.de <
> out of all the years I owned Computer Exchange Inc. I had only one 7970 hp
> tape drive that would read 7 track... even the ones that only read 7
> track must have been scarce too, or I just never attracted them!
Are you sure it was a hp 7970 ?
All hp7970 I found are 9-track ...
--
You must have not looked very hard.
page 1-02 of the 7970 manual at www.spies.com/aek/pdf/hp/tape/07970-90887_7970svc_Dec77.pdf
7970B/7970E magnetic tape unit configuration guide
model-option
7970B-136 200 556 800 7tk
7970E-164 200 556 800 1600 7tk 9tk slave
7970E-165 200 556 800 1600 7tk 9tk master
I don't have a vector file, but I do have some files which people might
find interesting. I have a scan of an 11/70 rack header panel which has
been retouched in Adobe Photoshop:
http://www.ubanproductions.com/panel1170b.jpg (97405 bytes)
I also have two Adobe Illustrator files of a re-created 11/70 rack
header panel which I made based on the original scan. The first of
the two Illustrator files includes the very large original scan, so
if you don't want that, please don't download it. The second file
only contains the Illustrator version of the panel. I think that
this reproduced image is very good and could be used to reproduce
a graphic for these panels:
http://www.ubanproductions.com/panel1170b.ai (4596764 bytes)
http://www.ubanproductions.com/panel1170.ai (169499 bytes)
Enjoy!
--tom
At 09:55 AM 8/29/2003 -0400, rogersda(a)cox.net wrote:
>BTW: Does anyone here happen to have a vector-graphic file of the digital
>logo? In any color?
>
>Dale
Just like to have a confirmation that it can read 7 and 9 track tapes
--
7 and 9 track 1/2" tapes have different track spacing, and require
different head stacks for each format.
the only drive I have ever heard of that was capable of reading both
were specially configured HP 7970's
Good luck finding a drive capable of reading 2400' 7 track tapes.
It took me several years to find just a 7 track head stack, and it
cost me $500.
If you ever wanted a DEC Computer Lab then now's your chance. There are 7
of these being offered on eBay right now:
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=3044043907&category=294
Check the seller's other auctions for links to the other ads. They all
have opening bids of $29.95.
--
Sellam Ismail Vintage Computer Festival
------------------------------------------------------------------------------
International Man of Intrigue and Danger http://www.vintage.org
[ Old computing resources for business || Buy/Sell/Trade Vintage Computers ]
[ and academia at www.VintageTech.com || at http://marketplace.vintage.org ]
At 05:31 PM 8/24/2003 -0400, you wrote:
>1 Lot of 25 3' inch polished Silicon Wafers
>http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=2552753957
Are these commonly available at Bay area surplus shops?
I've got some old 3 inch wafers, but I'd like some big ones, too.
- John
On Aug 28, 21:04, John Honniball wrote:
> Peter Turnbull wrote:
> > It's over 10 years old, and it's microprocessor-compatible, but
it's an
> > analogue to digital converter chip, not a computer. It's also not
in
> > my spares box, and I need one. Does anyone have a spare? Or a
data
> > sheet?
>
> I only have a couple of ZN428 chips, and the data sheet for them. I
may
> have data for the ZN448 -- I'll have a look. It was a Ferranti part,
> if that helps at all.
I know it's Ferranti. Unfortunately a ZN428E is the opposite -- a DAC.
--
Pete Peter Turnbull
Network Manager
University of York
Is it a MicroVAX 2000 or a VaxStation 2000? If it is a VS2000 I have the
manual for that, but not the MicroVAX 2000. The last post mentioned
a VS2000. That got me wondering which it is. The VS2000 expects a
video monitor, but the printer port defaults to 4800 baud.
Well, I just read more in the VAXstation 2000/MicroVAX 2000 hardware
guide. It says" "Because the operator console is a very important tool
in diagnosing system hardware failures, the VAXstation 2000/MicroVAX
2000 provides for an alternate console terminal in case the first one is
not working.
On a VAXstation 2000 or MicroVAX 2000, you may attach a terminal to
the printer using a BCC08 cable (see Figure 1-1). On a MicroVAX 2000
you must remove the DEC423 converter before connecting the BCC08 cable.
If this terminal is connected when the system is first powered on, it
becomes the "diagnostic" console terminal, and the primary console
terminal is disabled for further use as a console.
the pinout for the 9 pin printer connector, J3, is as follows:
1 chassis ground
2 xmt data
3 printer rcv data
4 n/c
5 +12vdc
6 n/c
7 chassis ground
8 ground
9 FER_ENA
without looking at the bcc08, i would bet that FER_ENA gets tied either
to +12 or ground to enable the port as a console. Well, a google search
shows that pin 8 and 9 get shorted for the BCC08, and
4 is RTS, 5 is DTR 6 is DSR and 7 is signal ground.
hope that helps
http://h71000.www7.hp.com/wizard/faq/vmsfaq_019.html
is the website for that info
Joe HEck
