S100 RAM replacements

All: I decided to run a memory test on some boards I have and I found a bad chip. It's on a CompuPro RAM14 and the chip is a MM2147J. None of my other 16k boards has this chip (VG boards; contain 2114s but the boards have "BAD" labels on them so I've never plugged them in). The chip does not have a speed marking that I can see and I don't have a copy of the RAM14 manual although it might be similar to the Godbout EconoRam IV which uses the 40144/mm5257 chips. Can anyone help me with a suitable cross for this chip...and a source? My usual haunts don't show stock on this number. Thanks. Rich Rich Cini Collector of classic computers Build Master for the Altair32 Emulation Project Web site: http://highgate.comm.sfu.ca/~rcini/classiccmp/ /************************************************************/