B&K Precision 9830B Programmable AC Power Sources provide high performance and low total harmonic distortion in a 3U form factor. The addition of positive and negative DC offset voltages expands the AC capabilities of these power sources to operate in DC and AC+DC output coupling modes. The user can select built-in and user-defined harmonic waveforms or select from standard sine, square, or clipped sine outputs. The high output current crest factor and low input resistance make the 9830 Series suitable for high inrush current measurements when evaluating capacitive or inductive loads. B&K Precision 9830B Programmable AC Power Sources have a 3-phase option, which can be achieved by connecting 3 units of the same model in a master and slave configuration using the optional TL983P 3-phase sync adapters.