🚀 go-pugleaf

A friend gave me a junked 19" rack mount box that contains 3
or 4 boards populated with lots of Motorola CMOS ic's (dual
4-bit latches, decoders, counters, bit-rate generator, etc.)
and relays.  One of the boards seems to contain the controller
that selects or switches among data paths or channels.  I
think that I can identify almost everything in the box except
the processor chip on the controller card and some TI 16-pin
chips marked ULN2003AN.  Can anybody help here??  Are these
transistor arrays??  The controller (CPU?) is marked TR 1402-A,
is a 40 pin ceramic DIP, and is stamped with what looks like
an integral symbol through an "oh" :
                     _
                    /
                   O
                  /
                 -   (hard to draw with these things!)
Oh, and there's an HP 8-pin chip marked 2601 and then 830
xx below it where xx looks like a UR run together and reversed
(mirror image).

Anyone care to speculate about the function of the chips/box??

        roger         rzh%freedom.llnl.gov@lll-lcc.llnl.gov
                      ucbvax!lll-lcc!freedom!rzh
    Upstairs, Over a Vacant Lot, Inc.