Vintage Radio Service Manual - SPARTON model 1005 1006 1007 &1008 (Chassis No.8-57) 8-tube Superheterodyne AM FM radio receiver with phonograph record changer combination. Manufactured by Sparks-Withington Company, of Jackson, MI. Dated 1947. 8 pages. Original old Sams Photofact manual includes schematic, layout, alignment instructions, voltage & resistance test chart, repair parts list and description. This manual would make a sensational accompaniment to your retro phono equipment.