Artifact Details Title Vacuum tube type 11DS5 Catalog Number 102730734 Type Physical object Description The record contains two vacuum tubes, type 11DS5. Each tube is in a 7-pin miniature glass envelope. One of the tubes has the manufacturer printed in red in the middle, the other has the same printing in white. Manufacturer Radio Corporation of America (RCA) Place Manufactured Japan; U.S. Identifying Numbers Model number 11DS5 Pritned at the top of each tube in gray Dimensions overall: 2 5/8 in x 1/2 in x 1/2 in Category Component/vacuum tube