Vintage Radio Service Manual - PHILCO model CR-12 8-tube universal automotive Superheterodyne AM radio receiver. Manufactured by Philco Corp., of Philadelphia PA. Dated 1948. 6 pages. Original old Sams Photofact manual includes schematic, layout, alignment instructions, dial cord drive, voltage & resistance test chart, repair parts list and description. This manual would make a sensational accompaniment to your retro car audio equipment.