Strange Qbus cards: Data Systems Design and Marconi

From: Eric Smith <eric_at_brouhaha.com>
Date: Fri Oct 3 19:08:49 2003

"Fred N. van Kempen" <waltje_at_pdp11.nl> asks about:
> - two Data Systems Design cards.. half-height, some RAM, some PROMs
> and a fair bit of logic. One 16Mhz xtal. One connector (28 pins
> or so)

Most likely one of their floppy subsystem controllers, possibly for
a DSD 440. It's software-compatible with an RX02, but you have to have
their drive box as the cable interface isn't compatible with anything
else.
Received on Fri Oct 03 2003 - 19:08:49 BST