From the KK11-A user manual :

Hi, all, I'm looking for any/alldocumentation for the PDP-11/34A cache, the KK11-A. (And no, it's not in the 11/34A print set!) At least one document does exist, the KK11-A Cache Memory Technical Manual (EK-KK11A-TM-001); this page references it: http://www.pdp-11.nl/pdp11-34a/cpu/options/cache-info.html but I can't find it online (well, someone's Flickr site has an image of one page of it, but that's all). The mention there of "cut the 'cache hit line' on the DD11-PK backplane" on that web page (above) has me concerned! But in general I'd like to know more about this board. Noel