Description: Original Howard W. Sams & Co. INC. Photofact CB Radio Series service manual pages for the 1971 Midland model 13-133E. It has 10 pages and is dated 6/1971. Pages are loose. Includes alignment instructions, receiver adjustments, transmitter adjustments, schematic / wiring diagrams, circuit-trace, parts location photos, parts list and descriptions. The model number of your CB radio is located on the unit. Very good condition.