Check the listing for details. BK Precision 3020 Sweep Function Generator Tested w/ Original Box Manual & Schem. Condition: Used. Listed at 99.95 USD. The BK Precision 3020 Sweep Function Generator is a high-quality unit designed for generating precise and stable signals for various testing and measurement applications. This function generator, manufactured by B&K Precision, offers a sweep function capability for easily obtaining a linear or logarithmic sweep of frequencies or time periods. The product comes with essential accessories such as the original box, manual, and schematics, making it a complete solution for professionals in the field of signal sources and conditioning. From a large, well-maintained electronics/ham radio estate. Nearly all equipment tested so far has powered and functioned properly, but this unit is untested due to missing 3-pin power cord.