Source:Zenith Electronics Corporation. Howard W. Sams & Co., Inc., Indianapolis, IN (1966)
Zenith Models 4100L, 4100X (Ch. 25NC37). Zenith Electronics Corporation. Howard W. Sams & Co., Inc. Includes coverpage photograph, includes full schematic review, alignment instructions, miscellaneous adjustments, detailed photographic description of the chassis as well as photographs, schematics and block diagrams for other parts of the set.