Artifact Details Title Vacuum tube characteristics teaching panel Catalog Number 102673370 Type Physical object Description Yellow panel with "PHILCO" written in black at the bottom and "Electronic Vacuum Tube Characteristics" written black at the top. Sticker on the front panel handwritten reads, "Position #7". Date ca. 1955 Manufacturer Philco Dimensions overall: 2 in x 10 in x 8 in Category Digital computer/other Credit Gift of Pearl S. Jackson Lot Number X3042.2005