Hi Guys, Still happily rooting through my big pile of ju.. er, "Fine high quality vintage material". Hit upon a big box full of assorted parts, ICs, etc. found a couple of white-ceramic 8080s, some keyboard encoders (also white-ceramic), lots of ROMs, RAMs (some very old), lots of interface logic, some disk controllers (including several 1793s which I needed but never did get around to ordering), and lots of other oddball stuff, including: about a dozen interesting looking chips, which are labled: MK4116E-3 This appear to be a 9-pin DIP ceramic carrier with two smaller chips mounted on-top - each of the smaller chips has the MK4116E-3 designation. The smaller chips also have 9 pins, however they are not DIP but rather in a 4, 5, 4, 5 arrangement all the way around the device. Anyone recognize these? My guess is some sort of RAM (dynamic)? Clearly not the same as a standard 4116 DRAM. Don't recall having seen these before (although a fair bit of trivia has drained away from the memory array over the years) - anyone know what they were used in? Still inventorying the documenation but I should have a complete list soon. Lots of S-100 hardware, NorthStar software and TRS-80 documents. Did find an original of David Ahl's "101 Basic Computer Games" published by DEC in 1973 (this one is from the 1974 2nd printing). Regards, Dave -- dave04a (at) Dave Dunfield dunfield (dot) Firmware development services & tools: www.dunfield.com com Collector of vintage computing equipment: http://www.parse.com/~ddunfield/museum/index.html