It is in the Dick Best Options and Modules List 197503
Steve Rothman is shown as responsible engineer
On 6/24/19 1:38 PM, Noel Chiappa via cctalk wrote:
While I asking on the TUHS list about the KS11,
someone mentioned the MX11
Memory Extension Option, described as "enabl[ing] the usage of 128 KW memory
(18-bit addressing range) ... developed by the Digital CSS (Computer Special
Systems)".
I'm not familiar with this