The Volture voltage sag utility pedal from JHS is a modern day device for your vintage fuzz circuitry. Simply place it in between your power supply and your pedal, and you can precisely trim the input voltage and perfectly replicate the tone of a dying battery. Though it was specifically developed for vintage fuzz circuits, the Volture will work on any fully analog pedal. In fact, you might be surprised by the trippy sounds you find lurking in your favorite overdrive or distortion.