Vintage Radio Service Manual - WESTINGHOUSE model H-153, H-153A, H-155 & H-171 (Chassis No. V-2103) 6-tube Superheterodyne AM radio receiver combination phonograph record changer. Manufactured by Westinghouse Electric Corp., of Sunbury, PA. 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.