On Mon, Jul 11, 2016 at 1:46 PM, Steven M Jones <classic...@crash.com> wrote: > Just wanted to point out that the PDT will happily run RT-11 v4, and I'm > not sure what the last version would be. I see a reference to using > VTCOM with the PDT-11/150 in the RT-11 v5.1 release notes, so...
As long as you have a suitable PD driver, any version ought to work... http://www.pdp-11.nl/pdt11-150/pdt11-150-info.html -ethan