Help identifying Honeywell system (transistor modules)

[rgrocha]

Hello,

I've obtained some transitor based modules from a Honeywell computer or control system with no references from its source.
I'd like to identify the system. I've tried searching for something similar on Google with no success.

Here are pics of some of them:








I'd really appreciate any help on this.
--
Roberto

 

[rgrocha]

To answer my own question. Seems like those are SDS/Xerox/Honeywell Sigma computer.

I've compared those modules with some pictures from random sites (eBay listings, Wikipedia, etc) and they matches on everything by the front label:

SDS Sigma system with modules (from Wikipedia)


SDS Sigma module (from an eBay list)

The modules numering also coincides: SDS/XDS uses AB123 schema and all of my modules also uses it.
Another coincidence is the module name on he silkscreen on the right side of the board on the previous picture.

Also the companies' stories coincide (https://en.wikipedia.org/wiki/SDS_Sigma_series)

So I believe its a match.

I hope it helps others.

Regards,
----
Roberto