Vintage GILFILLAN models 66A, 66AM, 66D and 66DM Superheterodyne 6 tube AM radio receiver. Original old Sams Photofact manual includes schematic, layout, alignment instructions, voltage & resistance test charts, repair parts list and description. Dated 1946. 4 pages. Gilfillan Bros Inc of Los Angeles, CA. This manual would make a sensational accompaniment to your classic retro radio equipment.