This notebook contains the following sections on the Type 524 Cathode-Ray Oscilloscope: Specifications, Operating Instructions, Circuit Description, Maintenance, and Parts List and Circuit Diagrams. Apendices include a block diagram, and schematics for Probe, Sync Separator, Trigger Delay & Field Shift, Multi & Sweep Generator, Sweep Amp., Time-Mark Generator, Preamp., Vert. Amp., Delay Line, Calibrator, LV Power Supply, and CRT Circuit. The final section covers Manual Change Information.