Artifact Details Title Radio tube Catalog Number X80.80 Type Physical object Description Tube is not cylindrical. It is narrow at the bottom and gets wide at the top. The base has four pins. A small sticker on the glass reads "NG". There is a round dark spot on the base the left of the text. Date ca 1950 Manufacturer Audiotron Place Manufactured U.S. Identifying Numbers Other number TYPE 201-A Printed on bottom Dimensions overall: 4 in x 1 1/2 in x 1 1/2 in Category Component/vacuum tube Credit Gift of Gary Papazian Lot Number X80.80
