Still unpacking after a house move 18 months ago... I have found just over
a dozen volumes of Inside Macintosh.
Since programing is not my thing, and I am not into the Macintosh, I don't
really need them. Does anyone want them? Tbey are free, but would have to
be collected from me in SE London (near Bromley, easy to get to from the M25).
I can make a list of titles if there is any interest.
-tony
Sorry, I didn?t ask on this one. It looked like a well used/loved machine with some wear and customizations to the front panel
Jerry
> On May 22, 2016, at 9:51 AM, Bill Sudbrink <wh.sudbrink at verizon.net> wrote:
>
> Jerry Weiss wrote:
>> I saw one Altair 8800
>
> I haven't seen an Altair at a hamfest in this century.
> Out of curiosity, what was the seller asking?
>
> Bill S.
>
>
Background - I have a PDP 11/40 that came to me with a CPU backplane and a
general purpose 4 slot peripheral backplane. The CPU backplane came to me
connected to the 4 slot via a std 11/40 M981. In the 4-slot I have I have
a working 64K solid-state RAM card, M7856 serial card, M9312
bootstrap/console card, and an RL02 drive controller. I can access RAM
>from the console, run the console program (monitor program) off the M9312
through the serial card. I can't boot yet off the RL02 and I am thinking
this is due to a termination issue, not sure yet. I decided I need more
backplane to go any farther.
So I decided to insert two 32K core memory backplanes in between the
original two backplanes that came with the system. My plan is to replace
the solid-state RAM card with core, and this will free up a slot on the
4-slot backplane for a terminator. Am I correct in my logic?
I have connected the "new" backplanes using M920's. Imagine the original
system with a core backplane wedged in the middle. Power seems fine, DC LO
AC LO fine.
Right now there is nothing in the core backplanes, First I want to verify
that I have them arrayed correctly and that I can still communicate with
the (now) 4th backplane in the back. I can run "chase the lights" from the
console but the serial card seems to have stopped working. It appears that
the console program is being loaded and runs from the M9312 but nothing is
appearing on the terminal. I cannot send an "A" to the terminal, the most
basic test I can think of.
Could be the the M7856 card decided to die on me just now, or something
else is wrong. Does anyone have a PDP 11 /05/10/35/40 and have
experimented about what you can and can't do with backplanes?
I know that there are a lot of variables here, so I'd like to start with
the basics
Basic Question #1
Do I need grant cards in *every* empty slot of the core backplane,
including the end slots with the M920's?
Basic Question #2
Can you only use the core backplanes for core memory (assume yes), or are
they capable of holding other types of cards temporarily? (yes/no/maybe)
I am researching the system config on my own, but I thought if anyone had
any advice I'd love to hear it, make troubleshooting a little easier.
I have read up on the subject:
http://retrocmp.com/how-tos/setup-a-pdp-11-unibus-backplanehttps://trmm.net/PDP-11
I see this is not a simple little thing. Working to find more GC cards now.
Thanks
b
--
@ BillDeg:
Web: vintagecomputer.net
Twitter: @billdeg <https://twitter.com/billdeg>
Youtube: @billdeg <https://www.youtube.com/user/billdeg>
Unauthorized Bio <http://www.vintagecomputer.net/readme.cfm>
I am hoping to install Windows NT 3.1 on my Jensen. Unfortunately I am
getting an error code relating to VGA. The tech docs I have make no mention
of this code, anyone know what it means:
VGA ?? 06 0020
Regards
Rob
Anyone spot anything list related at hamvention? I'm around trying to find anything cool. Particularly sun and ibm stuff.
Sent from my T-Mobile 4G LTE Device
I picked up one of those power systems, the other was gone before I got to it. The only things I can add are an amiga and tons of cisco network gear.
Not a whole lot this year I suppose.
Sent from my T-Mobile 4G LTE Device
-------- Original message --------
From: Brian Marstella <brian at marstella.net>
Date: 5/22/2016 12:09 AM (GMT-05:00)
To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org>
Subject: Re: Hamvention
After Alex mentioned it, I'd thought about driving up if anyone saw
anything of interest, but sounds like there isn't a great deal to pick from
for older computers. I really can't justify the drive anyway, this year...
Brian KI4GTD
On Sat, May 21, 2016 at 11:48 PM, Jerry Weiss <jsw at ieee.org> wrote:
> I saw one Altair 8800 and one TRS-80 III out in the swap fest.? Some more
> recent power (5?) series, but that?s about it.
>
> Jerry WB9MRI
>
>
> > On May 20, 2016, at 1:18 PM, Alex McWhirter <alexmcwhirter at triadic.us>
> wrote:
> >
> >
> >
> >
> > Anyone spot anything list related at hamvention? I'm around trying to
> find anything cool. Particularly sun and ibm stuff.
> >
> > Sent from my T-Mobile 4G LTE Device
>
>
I need to make some paper tapes of the diagnostics for my PDP-8/e. I
built an RS232/current loop interface and have it working I think
Did anyone else notice that the standard cable to connect the M8655
to a tty uses shielded twisted pair cable, but doesn't have the signal
pairs in the twisted pairs? This same cable is used with the DL11 too.
-chuck
Congratulations, Pete. I'd like to put some day my hands in one of these
but work and distance (Spain) make it complicated. Perhaps in some years
>from now.
Kind Regards
Sergio
Thanks Kip!
I did manage to get it going. Turned out the switches for baud rate are not labelled accurately. It has a monitor called Weebug.. no idea how to operate it. :) ?Hoping it's similar to SWTBUG, MIKBUG etc.
Brad
Sent from my Samsung device
-------- Original message --------
From: Kip Koon <computerdoc at sc.rr.com>
Date: 2016-05-21 4:29 AM (GMT-08:00)
To: "'General Discussion: On-Topic and Off-Topic Posts'" <cctalk at classiccmp.org>
Subject: RE: MSI 6800
Hi Brad,
I found these two links.? I hope they help.
< http://www.old-computers.com/museum/computer.asp?st=1&c=732>
< http://www.hinkles.us/chuckbo/MSI-6800/index.htm>
Take care my friend.
Kip Koon
computerdoc at sc.rr.comhttp://www.cocopedia.com/wiki/index.php/Kip_Koon
> -----Original Message-----
> From: cctalk [mailto:cctalk-bounces at classiccmp.org] On Behalf Of Brad H
> Sent: Friday, May 20, 2016 10:31 AM
> To: General Discussion: On-Topic and Off-Topic Posts
> Subject: MSI 6800
>
>
>
> Hi there,
> I have acquired an MSI 6800 (SS50) computer and am trying to figure out how to get it going.? I am reaching out everywhere hoping to
> find someone with knowledge of these as I have searched around extensively and cannot find a manual.
> With a null modem cable connected to a PC I can get a response from the computer by typing things or resetting it, but the output is
> garbled.? I know the baud rate but at present have no way to determine the other settings like bit, parity, etc.
> Any help/advice would be appreciated!
> Brad
> Sent from my Samsung device
> I would hope whoever gets it is prepared to exchange information. There is no
> software with my machine, of course.
Pete,
Congrats! Once you pick up the system feel free to contact me about getting copies of the limited software I have for the MINC at this time. They are great systems to experiment with.
Mark Matlock
>
> In case anyone is worried I am keeping 2 MINCs myself. One is an RL01-based
> one that I have pulled the CPU, RAM and Bootstrap cards from and hung it off
> a DW11-B (Unibus-Qbus interface) on a PDP11/45 (yes, that does work!). I've not
> got the 11/45 running after the house move, but it is all there and sorting it out
> is just a matter of time The other MINC is a MINC-23 (PDP11/23 CPU board),
> with an RX02. I am also keeping at least one of every MINC module I have
> ever owned, including MNCAG (analogue preamplifier) and MNCTP
> (thermocouple interface).
Tony,
Using a DW11-B to connect the MINC to a PDP-11/45 sounds fantastic! What a neat idea! I have all the MINC modules except the MNCTP thermocouple interface and the MNCAM analog mux. With the modified BDV11 I've been able to boot 11/03, 11/23 and 11/73 CPUs. I run either RT-11 and RSX11M by changing MicroSD cards on the UC07 / SCSI2SD drives (configured as 4 150 MB drives). I understand some MINC-23s ran RSX and would love to find any drivers for RSX and the MINC modules.
Mark Matlock
