Vintage Sams Photofact Folder No 78 Repair Manual dated Nov 18, 1949 provides repair information for various brands like Admiral, RCA, and Motorola. This manual, published by Howard W. Sams & Co. Inc., covers electronics units from the 1940s, including radios and record players. It is a valuable resource for vintage electronics enthusiasts seeking to repair items from brands such as Arvin, Philco, and Westinghouse.