Vintage HOFFMAN model A501 combination Superheterodyne 9 tube AM SW radio receiver. With phonograph record changer player. Original old Sams Photofact manual includes schematic, layout, alignment instructions, voltage & resistance test charts, repair parts list and description. Dated 1946. 6 pages. Hoffman Radio Corp., of Los Angeles, CA. This manual would make a sensational accompaniment to your classic retro radio / phono equipment.