Vintage PHILCO models 50-1420,  50-1421,  50-1422 and 50-1423 4 tube combination Superheterodyne  AM radio receiver with phonograph record player. Original old Sams Photofact manual includes schematic,  layouts, alignment info, voltage test charts,  repair parts list. 4 pages. Dated 1950. Philco Corp. of Philadelphia, PA.  This manual would make a sensational accompaniment to your vintage audio equipment.