Vintage Radio Service Manual - SONORA model WGFU-241 & WGFU-242 5-tube Superheterodyne AM radio phono phonograph record player combination. Manufactured by Sonora Radio & Television Corp., 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.