Vintage DUMONT chassis RA-346, RA-346-A4 and RA-346-A5 5 tube Superheterodyne AM radio receiver (-A4 and -A5 equipped with electric clock. Original old Sams Photofact manual includes schematic, layout, alignment instructions, voltage & resistance test chart, repair parts list and description. 4 pages. Dated 1956. Allen B. Dumont Laboratories, Inc., Of Passiac, NJ. This manual would make a sensational accompaniment to your classic radio equipment.