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

From: Dave <dfnr2_at_yahoo.com>
Date: Sat Jul 17 19:38:34 2004

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


                
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Received on Sat Jul 17 2004 - 19:38:34 BST

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