A sweep generator is a tool engineers use to generate sinusoidal outputs while testing electronic equipment. The output will automatically have its frequency varied or swept between frequencies. A “sweep” is one complete cycle of a frequency variation. Engineers use sweep signal generators as test equipment, mostly to measure responses of filters, amplifiers, and electrical components. The tool displays the response clearly on an oscilloscope or X-Y recorder. Save money by shopping used and refurbished sweep generators at ValueTronics.com.