Hello, all: Well, my Northstar is up and running but I want to replace the flaky floppy drives with two working Tandon drives. I need the double-sided TM100-2A version, commonly used in the PC/XT. If anyone has these, please contact me off-list. Thanks a lot. Rich Cini Collector of classic computers Build Master for the Altair32 Emulation Project Web site: http://highgate.comm.sfu.ca/~rcini/classiccmp/ /************************************************************/