At 04:59 PM 22/09/2019 -0500, Thomas Raguso wrote:
>Update: I have also found IBM 500-series punch card equipment.
If you find any full boxes of blank IBM punch cards, please mention.
I might be able to afford postage on a few.
> 1970s HP computers
I'm probably going to cry when I see photos. (Because I'm in Australia.)
Guy
An ex DEC engineer offloaded some stuff that he had found in his attic.
https://i.imgur.com/413NSSL.jpg?1
It came together with a tektronix 1241 Logic Analyzer.
Someone that can tell more about it?
Then there were some DC100 tapes in a huge heap of TU58 diagnostic tapes
for VAX-11/730 and VAX-11/750 that looked different.
https://i.imgur.com/6n8yCxd.jpg?1
They were marked "BI-SYNC TRAINING TAPE" and "ASYNC TRAINING TAPE
TAP-895-103-1.0 3.04"
Anyone recognize what that could be?
BTW. What are the status of various 11/730 and 11/750 diagnostics on TU58.
Are those already dumped? It takes some time to work with TU58 so if
someone already done all this I might skip dealing with them.
I know of only one place that has TU58 dumps.
http://iamvirtual.ca/VAX11/VAX-11-software.html
Anywhere else?
/Mattis
So I have just acquired a copy of the service manual for the RP04 drive (ISS
model 733). Does anyone have an immediate need to look at this? If so, I can
put it on the top of the 'to scan' stack.
Noel
I was watching an early airing of "What's My Line", and they aired a
commercial by Remington Rand:
https://www.youtube.com/watch?v=I-DNG_bbHDE
The commercial starts about 19:30 and shows the Univac being used in a
weather prediction. Not much useful information, but the video is quite
interesting to watch.
Marvin
My MicroVAX 3100 gets stuck in boot with the leftmost 4 LEDs on, which
indicates it's executed some instructions from ROM.
That in turn may indicate that the ROMs are corrupt.
From
http://gentiane.org/~miod/machineroom/machines/digital/vax/3100-30/bare_mob…
it looks as if the ROMs are a pair of M27C1024s.
Mouser doesn't have those, but they do carry AT27C1024 in two different
speeds. Those look like they should work. It looks like my ROM burner
will support that, with an additional, not horrifically expensive, adapter.
The machine is probably a ka42b CPU (I can check when I get home). That in
turn suggests that the file simh/VAX/ka42b.bin (which is 256K, which is
nice, since that is two megabits) is probably the image I need.
So my major remaining question is: how are those chips laid out? Since
they're 16 bits wide, I assume that what I really have is a 64kword memory
image...but is one the bottom 32kwords and one the top? Or is one the left
16 bits of 64kwords, and the other the right 16 bits? In short, how do I
slice the image from simh to put it into the replacement ROMs?
Adam
>
> Date: Thu, 19 Sep 2019 22:27:23 -0400 (EDT)
> From: Ethan O'Toole <ethan at 757.org>
> Subject: PBXes at home
>
> A number of years ago I picked up a Lucent Merlin Legend system.
>
> --
> : Ethan O'Toole
>
I have a little Merlin 410 PBX at home, with the Conference and Music on
Hold plug-in modules.
--
Michael Thompson
Picked up an Intecolor 2400 terminal awhile back; it's a nice
VT100-compatible terminal with color enhancements. Unfortunately it's
missing the detachable keyboard. Probably a longshot, but anyone have one
of these lying around?
Thanks,
Josh
> From: Kevin Monceaux
> I'm not sure what it is about phone systems. ... I don't know why I'm
> doing this.
Oh, and the rest of us have a real use/need for old, slow, small (by modern
standards) systems that use a ton of power? :-)
Noel
