Vintage Radio Service Manual - STUDEBAKER model S-4624 and S-4625 (Philco) Superheterdyne Liberator AM car radio receiver. Manufactured by Studebaker Corp. 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.