Vintage Radio Service Manual - De WALD model A-514 5-tube Superheterodyne AM radio receiver. Manufactured by Dewald Radio Manufacturing Company, of New York, NY. 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.