Artifact Details Title 12 BIT MF DAC 1566D system building block Catalog Number 102728536 Type Physical object Description The object has a green board with an aluminum frame and a blue plastic connector. There is a row of eight potentiometers. There are also three small rows of resistors and diodes. Date 1963 ca. Manufacturer Digital Equipment Corporation (DEC) Place Manufactured Maynard, Mass. Identifying Numbers Model number 1568 D Printed in solder at the insertion end Other number 1568 Stamped into the aluminum face of the frame Dimensions overall: 1/4 in x 4 1/2 in x 7 in Category Component/module