Vintage Radio Service Manual - GILFILLAN model 86C 86P & 86U 8-tube Superheterodyne AM SW radio receiver. Manufactured by Gilfillan Brothers Radio Company, of Los Angeles, CA. Dated 1947. 6 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.