Vintage Radio Service Manual - ARVIN model 182TFM (Chassis No. RE-237) 8-tube Superheterodyne AM FM radio receiver. Manufactured by Noblitt-Sparks Industries, Inc. of Columbus, IN. Dated 1948. 8 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.