The CT71 Curve Tracer is used for the display and measurement of the dynamic characteristics of transistors, FET’s and diodes. Several different transistor characteristics may be displayed, including the collector family in the common emitter configuration. The design of this instrument is subject to continuous development and improvement, consequently this instrument may incorporate minor changes in detail from the information contained herein, which would, in the main, affect the Components List and Circuit Diagrams. The reader should therefore pay particular attention to the notes at the beginning of Chapter 5. Throughout this manual all references to front panel controls are in full capital letters, e.g., POSITION.