Artifact Details Title Gun tester Catalog Number 102735868 Type Physical object Description This record contains one gun tester for vacuum tubes. It has four thin legs attached to the body of the tester. The body is circular with a small hollow round protrusion at the top. It has one thin metal wire attached to the body Identifying Numbers Other number 416 Hand etched onto the side of the tester Dimensions overall: 3 1/2 in x 2 1/4 in x 2 1/4 in Category Miscellaneous/tools and hardware Credit Gift of Sterling Newberry, Micro-bit Corporation Lot Number X329.84