The Zeta Sound Lady Luck is a high voltage vibrato/tremolo pedal based around two 12AX7 vacuum tubes. The circuit is based on the vibrato circuit of the Wurlitzer organ. True bypass with shielded signal wiring. Knobs for Speed, Depth, Volume and a slider switch for Vibrato/Tremolo. Powered by an external 1A, 12VDC, 2,1mm center negative adapter. … Continue reading "Lady Luck"