Vintage ELECTRONIC LABS models 710-B, 710-M, 710-T and 710-W (Orthosonic) 10 tube AM radio receiver. Original old Sams Photofact manual includes schematic, layout, alignment instructions, voltage & resistance test charts, repair parts list and description. 6 pages. Dated 1947. Electronic Laboratories, Inc., of Indianapolis, IN. This manual would make a sensational accompaniment to your classic retro radio equipment.