Vintage Radio Service Manual - SPARTON model 1010 (Chassis No.7L7) 7-tube Superheterodyne AM radio receiver combination record changer phonograph. Manufactured by Sparks-Withington Company, of Jackson, MI. Dated 1948. 4 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.