This is a vintage Howard W. Sams Photofact Service manual covering Nos. 56 to 60. These manuals are a valuable resource for collectors and enthusiasts of vintage electronics and audio equipment. With detailed diagrams and schematics, they provide insight into the inner workings of some of the most iconic devices of the time. Whether you're looking to repair or restore a vintage piece of equipment, or simply want to learn more about the technology of the era, these manuals are an essential addition to your collection. See My Other Items