Snagged this (just too cool to pass up) a few days ago, it's a rather large expansion unit for the TRS-80 Model 100 (basically attaches to the bottom of the unit, adding an extra 1.5" thickness) that contains 128K of bubble memory (and takes an extra 7 AAs for power...). The only markings on it are a label on the front that says "Sound Sight." I have the ROM (which I'll attempt to dump once I can build an adapter for it) but no instructions. I've found a tiny bit of information on it ("CALL 63012" is a magic incantation to invoke the ROM) but nothing else. Anyone have any info on this? Thanks as always, Josh