Artifact Details Title Vacuum tube Catalog Number 102691726 Type Physical object Description This tube is not cylindrical in shape. It is narrow at the bottom and is wider at the top. The glass is transparent and blue tinted. There are four pins on the base. There is a "Public Radio Service" label attached to the glass. Manufacturer Arcturus Radio Tube Company Place Manufactured U.S. Identifying Numbers Other number 127 Printed on base Other number 21 Stamped into bottom of base Other number JAN 9 1947 Ink stamped on label on glass Dimensions overall: 4 1/2 in x 1 1/2 in x 1 1/2 in Category Component/vacuum tube Credit Gift of Gary Papazian Lot Number X78.80
