Artifact Details Title Wafer Catalog Number X393.84 Type Physical object Description This item comprises two pieces: wafer and plastic case. This originally was X393.84A-B, but we changed it to be X393.84 to be consistent with X394, 5, 6, 7, 8.84 items Date c. 1980 Manufacturer National Semiconductor Corporation (NSC) Place Manufactured U.S. Identifying Numbers Model number SO2321 Handwritten on paper label attached to case Other number 11 Handwritten on paper label attached to case Dimensions overall: 3/8 in x 4 1/2 in x 4 1/2 in Category Component: IC Credit Gift of John Payne Lot Number X393.84