Old-Timer wrote:
> I have two 8k memory boards for which I need the switch settings or a
> copy of the setup manual:
>
> 1. Seals 8k model S8KMB (1977)
> This is the one with the 7-position switch at upper left.
> It is NOT the model 8kSC model with the switch at bottom.
>
> 2. Quantronics (Problem Solver Systems Inc.) 8k Model MM8 (1977)
> This one has two 7-position switches on the left side of board.
>
>
> Any information on these boards will be appreciated...
> Thanks
>
> Old-Timer
> John Gill jdgill at juno dot com

Generally you can determine functions of these sorts of switch settings
with a little bit of circuit tracing with an ohmmeter and a book of TTL
and memory chip pinouts. If you have several S-100 memory board
schematics, you'll likely find these are like other circuits.

If you just want manuals, the seals 8K manual is available from me (I
think) for a modest fee; I don't have the PSS 8K manual, only a 16K
manual. I'd be interested in a copy for copy trade accordingly. Also,
if you can confirm the relationship between Quantronics and PSS, I'll
add that fact to my Web site:

http://www.retrotechnology.com/herbs_stuff/s100.html

...which lists S-100 companies. Thanks!

Herb Johnson

Herbert R. Johnson, New Jersey USA
web site
domain mirror
my email address: hjohnson AAT retrotechnology DOTT com
if no reply, try in a few days: herbjohnson ATT comcast DOTT net
"Herb's Stuff": old Mac, SGI, 8-inch floppy drives
S-100 IMSAI Altair computers, docs, by "Dr. S-100"

Herb:
The 8k RAM board has the words:

QuanTronics
Computer Products from
Problem Solver Systems, Inc

MODEL MM8

Printed at the bottom left side of the board

I can probably figure out the address settings on the Seals S8kMB
board. I think the first 3 positions are used in a binary address to
set it for 8k banks 0-7. Im not sure what the other 4 switch positions
are used for.

The PSS board will be more of a task, since there are two 7-position
switches.

I do have the manual for the Seals 8k RAM model 8k SC (May 1976)
Do you need a copy of this one ???

I also have manuals on several IMSAI, Cromemco, and other boards
from the 1976 - 1982 period.

Old-Timer
John