The classic application for the circuit tracer involves finding which breaker supplies a given 120V load (Photo below). But circuit tracers aren't limited to 120V circuits or simply finding breakers.

The circuit tracer in Figure 1 is a handy tool for finding connectivity paths on a pc board. Because the sense voltage you use to measure the path is lower than a transistor's V BE voltage, you can ...

Commercial curve tracers have existed for decades. But designers without access to one can create a simple circuit that uses a function generator and oscilloscope to generate JFET transfer and ...