I have available the folllowing manuals : Plessey PM80 Core Memory manual ( Omnibus core mem boards,, extensive description ) Applied Digital Data Systems "How to use the Consul 520" (Description of an ascii terminal) Calcomp 836 Technische beschreibung ( Manual for early Calcomp plotter, in German ) Calcomp Pen and Paper user guide. DEC OS8 mark sense batch user guide Control Data NOS2 reference set volume 3 "System commands" (For CDC cyber machines) Terms : Free , you pay P&P from Zurich Switzerland. In case of multiple requests i will decide in an utterly undemocrating way who gets what. Jos Dreesen