Artifact Details Title Flip chip unpopulated NAND circuit card. Catalog Number 102741334 Type Physical object Description The object consists of an unpopulated single-sided printed circuit board which when populated would become the basis for four type R121A NAND gate flip chip circuit cards. Date 1966-04 Manufacturer Digital Equipment Corporation (DEC) Identifying Numbers Model number R121A Other number 4-66 On the etched side of the card. Dimensions overall: 1/8 in x 11 3/4 in x 4 7/8 in Category Component/circuit board Credit Hewlett-Packard Company (HP) Lot Number X7042.2014