to:
Here's a cool website about the 2068 with pictures of
the old Zebra (Portugese) Disk Systems.
http://www.timexsinclair.org/
Enjoy!
I had fun reading these articles...
I still have half of a disk system here, and my friend
Tom in NJ has the other half I'm sure I can grab from
him some time...
Al
I have a PDP-11/10 (a.k.a PDP-11/05) which I am attempting to bring back to
life. It was placed in storage many years back, and appears to be in good
condition. I am at the point where I can enter programs from the front panel
and execute them (core memory and processor appear to work). I have a LA36
hooked up as the console to the SLU. I think the TS03 tape drive may work,
and I am in the process of cleaning a RK05 disk drive and disk pack.
My question is, what am I looking for in order to load RT-11? Is RT-11
easier to install via tape, or am I looking for a bootable disk pack?
At this point, I am not looking for specifics, I need to know what is the
general means to bootstrap RT-11 onto a PDP-11. This exercise is a
precursor to getting a PDP-11/20 up and running.
I would also like to know if one of the PDP-11 emulators would assist me to
learn what I need to do in terms of bootstrapping a system. I have used a
PDP-11 10+ years ago, but never needed to bootstrap a system.
Thanks for any assistance.
--barryM
Forget the Univac III, get yer Cray now:
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=3403082724
What the heck is going on here? Next thing, we'll find out the ENIAC was
secretly hidden away in some building on North Base.
--
Jeffrey Sharp
Many profuse thanks to everybody that rounded up information for me about
TELEX ttys.
I'm in a bit of an embarrasing situation-- after getting this nice Model 32
WU tty,
tsting it out, finding out it works perfectly, I finally realize -- I don't
have any space for it!
My SWL area is very small, already full, plus no easy way to get the TTY
down the steep narrow stairs to my lair.
So I've reluctantly put it up for auction on eBay. Interested folks can see
it at:
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=3010656618
You could do a lot worse than to have a shiny , sleek, and well-working
Model 32 TTY.
Thanks for reading,
George
Hi,
Below is a post I sent about 3 years ago on some transputer boards that I
received which I didnt know what they are. Well, I finally got some answers
(nothing is late in this hobby)....
Vytal LTD designed the B020 graphics board and the VTM 301 Vector Tram board
(as well as the VecTram) which was licensed to INMOS to be sold.
The VTM 301 is a pre-cursor to the IMSB420 VecTram module and was the 1st of
many production runs. It is not software compatible to the IMSB420. The
underside of the tram is where the DSP processor is inserted...
The IMSB020 graphics board was also designed by Vytal LTD...
The Paradise 1/A was designed by T2SL and is a SCSI Tram. I finally found
information on this and scanned the documentation and posted it on the web.
The link is
http://www.classiccmp.org/transputer/documentation/t2sl/Paradise-1.doc.
Yes, it is in microshaft format, but I will soon change that. Now on other
transputer stuff I recently aquired like a prototype RS232 to Transputer
link board from INMOS...
Cheers,
Ram
**********************************************************************
Hi,
I picked up several transputer based hardware including
a B020, B008 and several trams including 2 SCSIs trams
and an ethernet tram. Among the collection, I found 2
wierd looking ones. One is a tram and the other I got
no idea how to use it.
The Tram is a size 4 tram and has the following labels:
T2SL
Paradise- 1/A
It contains what looks like an IDE connector and
has the following chips:
INMOS IMST222C
LOGIC L54C80JC-4
and two INMOS IMS1620S55 ICs.
The other card has an IMST800D-G20S chip
and has the following on the board:
VYTAL VTM 301
Copyright VYTAL LTD 1989
On the underside, it has a socket for another
transputer chip (maybe??).
Oh, there is another board too. It is also a size
4 tram and has a T805-G30S and the board is
>from INMOS. There is a label on one of the IC
chips (written using a pen, so might not be
reliable) "B417-17 SE006".
Also, the B020 graphics card has no SIMMs on it.
Does anyone know what type of SIMMs I can use.
Finally, I got an ethernet tram without any cables.
What type of cable to I need to use it. It is an IMSB421
tram. The SCSI trams would probably use standard
SCSI cables. Am I right. Thanks for you help.
Ram
_________________________________________________________________
MSN 8 helps eliminate e-mail viruses. Get 2 months FREE*.
http://join.msn.com/?page=features/virus
Well, I finally got around to working on my Novas again, and the first thing
on my list was to replace the burnt out bulbs on the front panels. I started
with my Nova 2. Several months ago I bought a bulb at Radio Shack to try out
and today I soldered it on to the Nova 2 front panel PCB. It worked, the
light lit up very brightly when the machine was in the RUN state (it was the
RUN light that I replaced). The light is *very* bright. It also gets warmer
that the others do, but it is a smaller bulb. It also seems that all the
other lights dim when it comes on, but IIRC, they always did that when the
machine was in the RUN state, before I replaced any bulbs.
Anyway, I wanted to double check before I replaced all the lights and make
sure of the voltage level. Does anyone know what that is? I don't have much
Nova 2 documentation, and the Nova 1200 documentation I have doesn't list
that information.
--
Owen Robertson
> I tested a Viking QDT with RT-11 and a 1 gig HD. Of course, I could only use
> the first 30 megs. This one is destined for a BSD machine anyhow.
The Viking QDT and RT-11 can address a lot more of a HD than 30Mb. For
example V5.3 supports 8 partitions (8 * 30 = 240MB), newer versions support
more. I can't remember off the top of my head how much as I'm running a
newer version, but I'm using 100Mb and 200Mb HD's under RT-11.
The QDT is a great board, on my /73 I've got a Plextor 8x CD-ROM, DEC TLZ06,
and two PC Removable disk trays (for easy swapping of HD's) hooked to one.
I've successfully run RT-11, RSX-11M, RSX-11M+, and RSTS/E on this setup.
I was originally using 100MB and 200MB SCSI disks, I now use 2GB 7200RPM
Seagate Barracuda's.
> I got the QDT for $45 on eBay. Someone put it up with a buy-it-now of $45.
> Someone tipped me off, and I got there first. It pays to keep a sharp eye on
> eBay. I just bought a KDJ11-SD off eBay for $5. This is a nice one: rev -09
> CPU, 18 MHz, 1.5 megs RAM. Other recent eBay steals: RQDX3 for $10, DESQA
> for $8.50.
Nice, it shows I've not been keeping a close enough eye on eBay.
Zane
----------------Original Message-----------------
From: "Philip Pemberton" <philpem(a)dsl.pipex.com>
Subject: WTD: AMD or Intel 80387 Math Coprocessor IC
Hi all,
I'm trying to track down a 387 math coprocessor IC for an old 386-based
Linux box that's going to be doing a bit of numbercrunching for me. Has
anyone here got an AMD or Intel (AMD preferred) 387 coprocessor rated at
40MHz (-40 part number suffix) that would work correctly with an AMD
Am386DX-40? No, before you ask, the 386DX does *not* have a built in
mathco - the 486DX was (IIRC) the first DX-series chip with a built-in
coprocessor.
Thanks.
-----------------------------------------------------------------
If you're not in a hurry, I've got a couple here; as noted elsewhere, I don't
think Intel made any at that speed in the good old days and IIRC they were
all second-sourced. The two that I have are a ULSI and a Cyrix, both 40Mhz,
and both on boards using the AMD 386 DX-40..
I think you were also looking for a riser board to allow mounting ISA cards
horizontally; might be able to help you out there as well, but would need
exact dimensions. Finally, I haven't forgotten about the other stuff you & I
were talking about, the PPT punch, reader and tape and the small footprint
386 boards, have just been dealing with a lot of other crap in the last while.
Will be in touch ASAP,
mike
----------------Original Message----------------
From: "Steve Jones" <classiccmp(a)crash.com>
Subject: Cromemco 68k System 100 on eBay
Looks like most of a 68k-based Cromemco on eBay.
...
I hadn't realized anyone had put a 68020 on the S-100 bus...
----------------------------
Sho 'nuff, but don't feel bad; lots of people
only think of 64K Z80 CP/M systems like the
classic Z-2 when they think of Cromemco, not
the professional UNIX-V systems that gave DEC
et al a run for their money in the later days,
especially after Cromemco merged with Dynatech
in December 1986.
To quote from one of their ads listing their
technical contributions, they:
-Named the S-100 bus
-Developed the first micro that used the Z-80
-Developed the first multi-user micro
-Developed the first UNIX-like OS for a micro
-Developed the first micro using a Winchester HD
-Developed the first micro with 16MB RAM and
50MB HD for less than $50,000
-Developed the first colour graphics micro
-Developed the first micro addressing >64 KB RAM
-Developed the first UNIX V micro
-Developed the first micro capable of IBM RJE
-Developed the first intelligent I/O interfaces
with separate microprocessors on the I/O boards
-First adapted mainframe I/O channel processor
concept to a micro
-Developed the first micro that could auto-boot
from ROM
-Developed first micro with auto-baud console
-Developed first micro capable of self-programming
an EPROM
-Developed first micro with error correcting RAM
-Developed first computer capable of sync'ing to
a TV signal and overlaying computer & TV images
Considering all that, I'm surprised how rarely I
read about them here.
Sorry to say we scrapped a number of CS-100/300/400's
a few years ago before I discovered this site (and
considering the time I've wasted scrolling through
the garbage lately in digest mode there are times
I've regretted that I did find it). Mind you, when
I offered some of the older CS-1/CS-3 and Z-2's here
a while ago, no one wanted to pay the shipping from
Toronto, so it probably wouldn't have made any
difference; fortunately Dan Cohoe, another crazy
Canuck, is going to take them off my hands.
However, I might still be able to lay my hands on
some documentation and software for the 100/300/400
models, so if someone here grabs the one on eBay, I
*might* be able to help (no promises, though).
mike in Toronto
