The Thermion Powervibe is an analog optical vibrato pedal designed for electric guitar and bass. It is inspired by classic rotating speaker and photocell-based modulation circuits, focusing on smooth pitch modulation rather than amplitude tremolo. The pedal features a simplified control layout intended for real-time performance adjustment. It is housed in a metal enclosure suitable for pedalboard use. The Powervibe is designed to deliver vintage-style vibrato textures with modern reliability. It operates without digital modeling or menu navigation.