Artifact Details Title HK55 Module Catalog Number 102730804 Type Physical object Description Object is a PCB with a handle for extraction. It bears 12 discrete transistors and other components. Printed on the component side is "SELECTOR CONTROL". On the solder side is one round, one triangular, and one square inspection stamp. Date 1963 Manufacturer Scientific Data Systems (SDS) Place Manufactured Santa Monica, Calif., U.S. Identifying Numbers Model number HK55 Printed on label on handle Other number 100998E Stamped on solder side Serial number 052165 Printed on label on handle Dimensions overall: 6 in x 5/8 in x 5 5/8 in Category Component/module Credit Gift of Rudolf F. Wrobel Lot Number X3736.2007
