Hi,
a short time ago, i got hold of a C 900 (bare machine only, no
keyboard/monitor), that i want to get working again ...
I have already searched the Web for specs of keyboard and monitor but
without success.
The machine has an AT-type keyboard plug, but it's not clear (at least
for me), if a normal IBM compatible keyboard
will work. As i have the workstation version, the display resolution
should be 1024*800 which seems to be a bit
uncommon, so i'm not sure, which monitor could work ...
Can anyone provide some documentation, that would help to find a working
keyboard/monitor ?
Getting the software for the machine would be very helpful too ! ...
Thanks a lot
Bernd
I've just taken possession of a small IBM System/370 mainframe, and I
thought I'd share the joy. This system has been sitting in North
Carolina waiting for me for about six months; I've only now been able to
arrange for transport due to financial restrictions. I've got 450
pictures and nearly a gigabyte of video to sort through, but here's a
quick series of shots, including one or two with yours truly striking a
pose:
http://www.neurotica.com/misc/s370/
The system is a member of the 9370 family. It consists of a 9375
processor, five 9335-B01 disk drives (824MB/ea), two 9335-A01
controllers, and a 3430 tape drive. Everything was shrink-wrapped and
sealed with IBM anti-tamper stickers. All the cabling is present; it's
all coiled up in the back of the processor cabinet. I also received a
mountain of documentation which I've not yet gone through. Everything
is absolutely pristine save for some tape residue. I broke the seals
and unwrapped the system personally, with camera rolling and heart pounding.
Thanks to my friend George Adkins for the Herculean effort of loading
it onto a truck in North Carolina and bringing it down here, and my
friends James Sharp and Pat Sherrill for assisting with the unload.
If I can get it running, I'd like to run VM/370 and/or MVS on it. It
originally ran VSE/SP. On that note...does anyone have an appropriate
console terminal for this system that might be available? I believe
that'd be a 3215, or perhaps an early (C.U.T. protocol I think) 3270.
I am so happy about this I can hardly contain myself. =)
-Dave
--
Dave McGuire
Port Charlotte, FL
Just to let all the folks on the list know...
There's a program just like the Disk Transfer Utility for Apple ]['s called "Amiga Explorer". It's sold by Cloanto, who makes "Amiga Forever". Being an owner of that, I have the program. All I need to do is find one of my Null Modem Cables to attach a PC to the Amiga 500 to transfer disk images. It will even install the program needed on the Amiga end over the serial connection.
So, once I get the Amiga 500 sorted out (the unit came badly packaged, showed up in pieces and isn't working...), I'll be able to transfer OS disk images to it.
Anyone have advice on which version of Kickstart ROMS and OS is the best/most useful on an A500?
Is there a driver to use a ZIP Drive as mass storage? Or use an old Adaptec Parallel Port SCSI adapter to run a Disk Drive?
Al
I'm helping a local school district with a technology exhibit. They
have a Dynalogic Hyperion, and are looking for the custom MS-DOS for it.
Anyone who might be able to help is encouraged to contact me off-list.
Thanks!
ok
bear
I'm working on a controller to drive some long >1m bidirectional
lines that require 220/330 termination and 48 ma. drive current
capability. For sake of argument, call them SCSI-1 SE (but they're
not SCSI (or HPIB)).
I'm finding that my choices are pretty limited. I could use a
74F621, 74FCT621 (CMOS) or a good old 75160. All appear to be within
the same approximate price range.
Can anyone make any recommendations?
Thanks,
Chuck
Dear All
I have a PDP-11 rack available for rescue in central London. It's just the
metal rack, no computer or power supply. Sadly space is no longer available
for it.
It's the cream-coloured style, about 42-inches tall, with a radiused top, to
match your 11/34 and RL02s. Has both sides, top, and two front blanking
panels. Has a few rust spots but not too bad. Castors. It looks like this
11/94 <http://www.pdp11.co.uk/profiles/item-enlarge.ehtml?i=38>.
It would really suit someone trying to achieve an authentic "cream period"
PDP-11 which I believe began with the 11/04 in 1976.
I might be able to find one or two more pieces, I think even an old power
supply for a 11/34.
Free for anyone who would like to collect it. Would require a van or at
least an estate car.
Any takers?
Kind regards,
Jonathan.
It's just a straightforward 16-pin DIP to DB25 IDC ribbon cable, DIP pin 16
aligned with DB25 pin 1.
Boy, those are huge files, almost 70MB; my copy from Howard Harte's site is
only 3MB (there are several revisions BTW).
mike
*******************************************
Date: Wed, 16 Jun 2010 08:35:50 -0400
From: "Bill Degnan" <billdeg at degnanco.com>
Subject: re: pinout for Vector Graphic's ZCB cable
>
> I have a Vector Graphic's ZCB cable that is wired for a 9600b 8/n/1
serial
> terminal. It was working yesterday, but the connections were brittle and
a
> few of the wires have come loose from the 25-pin connector. I can see
the
> spots where the solder was applied but I am not confident that I have the
> correct repair points. Does anyone have the pinouts for this cable so I
> can re-solder/replace? <snip>
I believe this is the answer to my question
page 10 of
http://vector-graphic.info/vg_zcb.aspx (download/part 2)
Bill
Since I've been failing miserably coming up with a working verilog PLL,
I decided to do something easier tonight.
I captured about 1,000 index pulses from a Sony MPF920-E(if I read date
code right, it's from April 1997) with a 20+ year old floppy disk with a
logic analyzer. I exported the data, and then massaged the data into
some results with Excel.
My average pulse was 200.487ms apart. All pulses were within 55us of
each other, range was 200.464ms -> 200.519.
Standard deviation was 9.46us.
This sounds way way better than the NatSemi AN-505 note of 1-2%.
Is anyone else surprised by this result? I was expecting differences
measured in milliseconds not micros.
Thanks
Keith