A Power Curve Tracer At Surplus Prices

Curve tracers draw a graph of current versus voltage of electronic devices. They are usually used to plot the characteristic curves of transistors (see Fig. 1a), but can also display diode curves (see Fig. 1b), and the v-i characteristics of other two and threeterminal devices. A family of curves is drawn, each curve differing from the next by a change in a controlling quantity (or parameter), such as base current or gate voltage. A curve tracer not only can do pass/fail tests but the mode of failure can also often be determined.