Artifact Details Title QK52 module Catalog Number 102730607 Type Physical object Description Object is a PCB with a handle for extraction. It bears two rows of discrete transistors and some resistors. Printed on the component side is "ADDRESS DECODER" Date 1963 Manufacturer Scientific Data Systems (SDS) Place Manufactured Santa Monica, Calif., U.S. Identifying Numbers Model number QK52 Printed on label on handle Other number 100540B Stamped on solder side Serial number 077329 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