Artifact Details Title Vacuum tube type CK5889 Catalog Number X74.80 Type Physical object Description There are four wire leads in a straight line that emerge from a flat crimp in the glass tube. There is an addition problem handwritten on one side of the box reading "280 | 435 | - | 715" and includes "2" on the left and "35" below a curving line. Manufacturer Raytheon Manufacturing Company Place Manufactured U.S. Identifying Numbers Other number 12/58 Printed on box Other number 280 Printed on tube Other number 58-52 Printed on tube Other number CK 5889 Printed on tube and box Dimensions overall: 3 3/4 in x 3/8 in x 3/8 in Category Component/vacuum tube Lot Number X74.80
