Vintage HALLICRAFTERS  models 21K370B,  21K370M,  21K371B,  21K371M,  21T360B,  21T360M 21T361B,  21T361M,.  24K380B,  24K380M,  24K381B,  24K381M,  24K480B,  24K480M,  24K481B and,  24K481M  (chassis A1800D, B1800D, C1800D and D1800D) TV television receiver. Original old Sams Photofact manual includes schematic, layout, alignment instructions, voltage & resistance test chart, repair parts list and description. 18 pages. Dated 1956. Hallicrafters Company of Chicago, IL. This manual would make a sensational accompaniment to your classic video TV equipment.