Vintage TRAV-LER models 621-20U, 621-21U, 621-22U, 621-25U and 621-26U (Ch. 421E5, 421G5 and 421M6) 21 tube TV television receiver. Original old Sams Photofact manual includes schematic, layout, alignment instructions, voltage & resistance test chart, repair parts list and description. 16 pages. Dated 1956. TravLer Radio & Television Corp. of Chicago, IL. This manual would make a sensational accompaniment to your classic video TV equipment.