A true piece of American History! A Digital Equipment PDP8 series Vintage Core Fabri-Tek Memory Board set. Take a look at the pictures they tell the story. My husband removed this from a working PDP system in the 1980 and has had it in the basement for almost 30 years. It should be in a museum but he has let me list it here. I doubt you will find another in such condition. Would make a great addition to any vintage computer collection. Because of its age it is being listed for purchase as is.