On February 9, Steven M. Jones wrote: It is indeed. As is the FP11-A board for the pdp11/34, and the FPF11 board for the pdp11/23 and pdp11/24. Am2901 chips kick ass. I really like them. Back in 1987 or so I worked at Princeton University on the Navier-Stokes Supercomputer Project. The microsequencer for the vector ALU in that machine is an Am2910. That was LOTS of fun. -Dave -- Dave McGuire St. Petersburg, FL "Less talk. More synthohol." --Lt. Worf