Vintage Radio Service Manual - AIRLINE model 74WG-2002A 6-tube Superheterodyne. AM radio receiver with phonograph record changer. Manufactured by Montgomery Ward & Company of Chicago, IL. 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.