Vintage ZENITH chassis 8C20 (models 8H032, 8H033, 8H050, 8H051, 8H052 and 8H061) Superheterodyne 8 tube AM FM radio receiver. Original old Sams Photofact manual includes schematic, layout, alignment instructions, voltage & resistance test charts, repair parts list and description. Dated 1946. 6 pages. Zenith Radio Corporation of Chicago, IL. This manual would make a sensational accompaniment to your classic retro radio equipment.