Compu-Das (Random Factors) S-100 A/D converter board

While checking out the contents of some 8" floppies on my PDP-11/73, I spotted a couple of circuit boards sitting on top of my LA-120 (that reminds me, I've got to get another box of greenbar... hopefully Office Depot still stocks it; can you believe that I've had quite a few co-workers who had no idea what greenbar paper is?). One of these boards is an S-100 bus board, a Compu-Das model 696-33 made by Random Factors, Inc. of Durango, Colorado. The board is partially populated by chips (it came out of a repackaged Dynabyte 5200 system made by a company Computermotor Corp.), two of which are a Burr Brown ADC76KG A/D converter, and another Burr Brown chip: an SHC80KP (not sure what this one is), in addition to various TTL logic. What's interesting about this circuit board is that the chips are all socketed in little copper sockets made into the blue circuit board, and, apparently, to add D/A functionality to this board as well, one just plugs in some (or all?) of the missing chips. Does anyone know anything about this board? -- R. D. Davis rdd(a)perqlogic.com http://www.perqlogic.com/rdd 410-744-4900