PDP 11/70s For Sale

A couple of points: 1. The 11/70 CPU itself weighs 400-500 pounds, in its cabinet with power supplies. Several fairly hefty guys can roll a CPU around and tip it into a trailer, for example. (Hi Elmo!) 2. An 11/70 by itself is pretty much useless. There's no memory inside the CPU box (in a "conventional" configuration) and there's no peripherals either. 3. Memory boxes weigh about 80-100 pounds each. A fully equipped system with core memory boxes (2 Mwords of core) requires 8 memory boxes. Solid state memory is more dense, and depending on exactly which generation of memory boards you might only need two memory boxes for a usable configuration. 4. Now you need peripherals. You'll almost certainly need a BA11 Unibus box tacked onto the CPU, this is another 70-80 pounds. And Massbus disk drives (as were mentioned in the original post) are the size of a washing machine and weigh several hundred pounds. You'll need at least two disk drives for any real usage. -- Tim Shoppa Email: shoppa(a)trailing-edge.com Trailing Edge Technology WWW: http://www.trailing-edge.com/ 7328 Bradley Blvd Voice: 301-767-5917 Bethesda, MD, USA 20817 Fax: 301-767-5927