Vintage Radio Service Manual - SPARTON model 5AI16 & 5AW16 (Chassis No. 5-16) 5-tube Superheterodyne AM radio receiver. Manufactured by Sparks-Withington Company, of Jackson, MI. Dated 1947. 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 audio equipment.