Artifact Details Title Pulse Amplifier 4604 H system building block Catalog Number 102716732 Type Physical object Description The board has a variety of passive and active components surrounded by an aluminum frame and blue plastic 22 pin male connector. On the component side there are three round inspection stamps on the part not covered by components. Date 1965 ca. Manufacturer Digital Equipment Corporation (DEC) Place Manufactured Maynard, Mass. Identifying Numbers Model number 4604 H Printed on the solder side Other number 4604 Stamped into face of aluminum frame Dimensions overall: 1/2 in x 4 1/2 in x 7 in Category Component/module