Vintage SENTINEL model 292K 6 tube Superheterodyne AM radio receiver with automatic phonograph record changer player. Original old Sams Photofact manual includes schematic, layout, alignment instructions, voltage & resistance test charts, repair parts list and description. 4 pages. Dated 1947. Sentinel Radio Corp., of Evanston, IL. This manual would make a sensational accompaniment to your classic retro radio / phono equipment.