23 Feb
2013
23 Feb
'13
2:50 p.m.
Folks, I'm restoring an 11/34A. One of the MOS memory boards it came
with is a circa 1979 Motorola model "MMS1117", variation "58 PC"
(64KWords / 18 bits / w/parity). Would like to know if anyone out
there has configuration information for this seemingly uncommon board?
It's a very high quality board and has socketed RAM, so it'd be
especially nice to be able to keep using it. It has 5 switch packs
(only 2 of which have markings) and at least a dozen jumpers.
I've only been able to locate performance specs for it at:
http://bitsavers.trailing-edge.com/pdf/motorola/_dataBooks/1979_Motorola_Me…
.... which are excerpted here:
www.cimmeri.com/js/download/MMS1117.pdf
.... and a photo of the board is here:
www.cimmeri.com/js/download/MMS1117.jpg
... a photo of the system itself is here:
www.cimmeri.com/js/download/11$34-20.jpg
Any help, very much appreciated. Thank you,
John Singleton
23 Feb
23 Feb
3:10 p.m.
... a photo of the system itself is here:
www.cimmeri.com/js/download/11$34-20.jpg
Drooling over the photo :)
---
Enviado do meu Motorola PT550
Meu site: http://www.tabalabs.com.br
5:02 p.m.
On 2/23/13 2:50 PM, js at cimmeri.com wrote:
Folks, I'm restoring an 11/34A. One of the MOS memory boards it came with is a
circa 1979 Motorola model "MMS1117", variation "58 PC" (64KWords / 18
bits / w/parity). Would like to know if anyone
out there has configuration information for this seemingly uncommon board? It's a
very high quality board and has socketed RAM, so it'd be especially nice to be able to
keep using it. It has 5 switch
packs (only 2 of which have markings) and at least a dozen jumpers.
I have a scan of the manual. I'll put it under http://bitsavers.org/pdf/motorola It
will probably take a couple of hours for it to show up on the mirrors.
24 Feb
24 Feb
11:37 a.m.
Folks, I'm restoring an 11/34A. One of the MOS memory boards it came
with is a circa 1979 Motorola model "MMS1117", variation "58 PC"
(64KWords / 18 bits / w/parity). Would like to know if anyone out
there has configuration information for this seemingly uncommon board?
It's a very high quality board and has socketed RAM, so it'd be
especially nice to be able to keep using it. It has 5 switch packs
(only 2 of which have markings) and at least a dozen jumpers.
I had a similar problem when I got my first PDP11 (a PDP11/45). The donor
had wanted to keep the memory that was used in it, he gave me what I
later discoveed to be a 32KW MUD board (actually, it could be populated
right up to 128KW, of course only 124K of those would be useable). I had
no idea how to set the swiches, or indeed, what sort of backplane wiring
I would need to use it .
This was logn before the days of the web. so there was no way to ask
others what to do.
And I got it working. I spent a few weeks tracing out the scheamtics of
the unknown board and figuring out just what all the switches and jumpers
did. A long job, sure, but IMHO worth it.
-tony
4320
days inactive
4321
days old
3 comments
4 participants
participants (4)
-
aek＠bitsavers.org -
ard＠p850ug1.demon.co.uk -
js＠cimmeri.com -
pu1bzz.listas＠gmail.com