OSI 560Z: DEC PDP-8 clone using 6100 & 6502

Hello, Having recently acquired some 6100's (I know they're lesser than the 6120), I thought I'd try a PDP-8 project (I remember seeing these, but never got to play with one.) Ohio Scientific had a board--the 560Z--which contained a 6100, a 6502, and a Z-80. The 6502 was "microprogrammed" to emulate the PDP-8 IOT codes, and OSI claimed that it was fully compatible. Has anyone played with one of these suckers? How good was the emulation? Does anyone have any info on the schematics of that board, or the 6502 firmware? Or, does anyone have an unused 560Z, working or not, they'd be willing to part with? I'm also aware of the SBC6120; I plan to order one of these soon. Thanks, Dave __________________________________ Do you Yahoo!? Yahoo! Mail - You care about security. So do we. http://promotions.yahoo.com/new_mail