There's not much on the Web, alas. We have two working prototypes (a wirewrap QBUS mother-board with bus transceivers, level converters, etc, connected to an FPGA prototyp ung card by flat cables), and working FPGA code to emulate an RK11, using a uSD card for actual storage. It's good enough that the /23 can boot and run V6. We also have working indicator panels: http://ana-3.lcs.mit.edu/~jnc/tech/DECIndicatorPanels.html but the inlay we've done: http://pdp10.froghouse.org/qsic/indicator-panel-printed.jpg is not a straight copy of an existing panel (those all have lots of lights that only make sense with a real drive, and leave out others that would be really useful, e.g. the address). Here: http://pdp10.froghouse.org/qsic/manual.pdf is the firat crack at the manual for the production version (the RP11 is not done yet). That's next, after the QSIC is out. It will include Able ENABLE: http://gunkies.org/wiki/Able_ENABLE functionality, so UNIBUS machines can have more than 256KB of main memory. I didn't get it, I found it on BitSavers - I assume that was what whoever provided it did. But it's actually stored in 12 4-bit wide PROMs, U95-U118 (roughly). Noel