Vintage Radio Service Manual - WOOLAROC model 3-13A, 3-14A, 3-15A & 3-16A 4-tube Superheterodyne AM radio receiver.  Manufactured by Phillips Petroleum Corp., of Bartlesville, OK. 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 audio equipment.