Electro-Harmonix GOOD VIBES Modulator PedalThe Electro Harmonix Good Vibes Analog Modulator recaptures the iconic chorus vibrato effect of the 1960s in an updated pedal designed to meet the needs of the modern player. Like the original Uni Vibe, it uses photocells to create chorus and vibrato with a warm, undulating, liquid like sound and response that's true to the classic design. Boosted power rails provide 21st century definition and headroom, and an expression pedal input puts free form