Vintage DEWALD models A504 and A505 5 tube Superheterodyne AM SW radio receiver. Original old Sams Photofact manual includes schematic, layout, alignment instructions, voltage & resistance test charts, repair parts list and description. 4 pages. Dated 1947. DeWald Radio Manufacturing Corp. of Long Island City, NY. This manual would make a sensational accompaniment to your classic retro radio equipment.