Artifact Details Title GH11 gate expander module Catalog Number 102731042 Type Physical object Description The object is a one-sided printed circuit board with 47 soldered-on blade connector pins. It has only diodes and resistors as soldered-on components. There is a copyright annotation of "SDS-62" on the component side of the board. Date 1963 Manufacturer Scientific Data Systems (SDS) Place Manufactured Santa Monica, Calif. Identifying Numbers Model number GH11 Printed on a label affixed to the board extractor Other number 101769A Stamped in black on the solder side of the board Serial number 057213 Typed on a label affixed to the board extractor Dimensions overall: 5/8 in x 6 in x 5 5/8 in Category Component/module Credit Gift of Rudolf F. Wrobel Lot Number X3736.2007