Vintage Radio Service Manual - AIRLINE model 74KR2706B  6-tube. Superheterodyne AM radio receiver with combination phonograph record changer. Manufactured by Montgomery Ward & Company of Chicago, IL. 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.