{revision of first CCTalk post on 3/22/12} Thanks to those who have been inquiring on these items, I can now render a more helpful post. Location: Washington, D.C., or near Frederick, Maryland. For trade (preferred) or best offers: - 1974 DG Nova 2 rackmount (untested, unrestored) top cover missing .Front panel (cosmetics very good condition) .Nova 2 CPU .Standard Memories 16k core .Basic I/O -- all electronics working condition unknown, but appear undamaged in very good condition. - 1971 DG Nova 1200 rackmount (untested, unrestored) w/ all covers. .Front panel (cosmetics -- fair condition) .Nova 1200 CPU .DG 4k core .Basic I/O -- all electronics working condition unknown, but appear undamaged in very good condition. - 1984 DG Desktop Generation R20 (untested, unrestored) w/ D461 terminal .dual power supply unit .R20 SPU unit with SPU, 256k ram, USAM, and asynch modules -- (note: no terminal cables or adapters.) .single drive diskette unit .hard drive unit .tape drive unit .manuals (setting up, testing, users in 2 encased binders) and 3 diskettes. -- all electronics working condition unknown, but appear undamaged in excellent condition. -- cosmetics, very good to excellent. PM me with trades, offers, questions, corrections. Looking for (in order of priority): - PDP 11/04 or 11/34 half-height (only) chassis, complete with PSU, covers, backplane, cables. No CPU or other logic boards needed. - HP 35721A monochrome monitor - Emulex TC12 tape controller or similar: Unibus->Pertec interface which emulates a "TS" device - ribbon cables for above -- controller -> Pertec-formatter tape drive. - Unibus ESDI controller - Pro/Venix docs (I'm using version 1.0 on a DEC Pro 350). - MFM drives: . CDC Wren II 9415-* . CMI CM-5412 . IMI 5012H . Maxstor XT-2085 . Micropolis 1324A . Priam V170 or V185 Thank you, John Singleton p.s. to check my reputation, see my ebay handle "MdntTrain".