On 04/04/2013 10:12 PM, Cory Smelosky wrote: Yes. I had one on my 11/34a years ago; it was in an external expansion chassis. I did love that mux, though! I got one again a couple of years ago, not sure which machine I'll put it in. How many external chassis did you have for that system? Only one external Unibus chassis, but it was a BA11-F, the big one that took up almost two feet of rack space. -Dave -- Dave McGuire, AK4HZ New Kensington, PA