ELECTRO-TONE model 555 AM radio receiver phonograph record player. Original old Sams Photofact manual. Includes schematic, layout, alignment instructions, voltage & resistance test chart, repair parts list and description. 4 pages. Dated 1947. Electro-Tone Corp., of Hoboken, NJ. This manual would make a sensational accompaniment to your classic retro  radio / phono equipment.