Lady Evil is an overdrivepedal equipped with two 12AX7 vacuum tubes. The circuit was from the beginning based on Mesa Boogies Bottle Rocket, but has been rebuilt for a more tight bottom and a focused sound. Powered by with an external 1A, 12VDC, 2,5mm center positive adapter. Voltage is internally converted to 250VDC feeding the tubes. When powered up it waits about 30 sec until the high voltage is placed on the anodes.