Artifact Details Title 12 BIT MF DAC 1568 D system building block Catalog Number 102729757 Type Physical object Description The object consists of a board with eight potentiometers and other components, surrounded by an aluminum frame with holes punched along the sides, and a blue plastic 22 pin male connector. Date 1963 ca. Manufacturer Digital Equipment Corporation (DEC) Place Manufactured Maynard, Mass. Identifying Numbers Model number 1568 D Printed on the solder side at the insertion end Part number 1568 Stamped into the face of the aluminum frame Serial number 0296902 Stamped into the side of the aluminum frame Dimensions 1/4 x 4 1/2 x 7 in. Category Component/module