Vintage ZENITH models Y723G, Y723R, Y723W, Y724G, Y724R and Y724W (Ch. 7Y04 and 7Y02) 7 tube Superheterodyne AM FM radio receiver. Original old Sams Photofact manual includes schematic, layout, alignment instructions, voltage & resistance test chart, repair parts list and description. 8 pages. Dated 1956. This manual would make a sensational accompaniment to your classic radio equipment.