Who had this? I'd like to take a look... BTW, what kind of EPROM is used? I don't feel like pulling my computer apart if my EPROM burner won't work. Thanks, Orin. "MAC ??" covers a lot of territory - ya wanna be more specific? I've done lotsa work with the MAC-02 (2532 EPROM, 6802 uCPU, written dissasembler for the code) . . . -RDH