Artifact Details Title Blank system building block Catalog Number 102727918 Type Physical object Description Object is a printed circuit board with no land patterns. It has a hand soldered network of resistors and diodes. There are circuit symbols drawn in pencil connecting several unused holes. Date 1960 ca. Manufacturer Digital Equipment Corporation (DEC) Place Manufactured Maynard, Mass. Identifying Numbers Other number 26193 Engraved on side of the frame Dimensions overall: 1/2 in x 4 1/2 in x 7 in Category Component/module Credit Gift of David Spicer Lot Number X760.86A-N