AC wave, cut in half with diode. The diode is blocking negative voltage and passing positive voltage.

Katherine Mahon Holmes , LMT. Yoga off the Mat blog. Along with table massage, specialized modalities may be added.

A Vibrato is an effect often used in music, where a pitch oscillates up and down between two notes. It is usually incorporated in songs to emphasize or embellish the original melody. The effect is most commonly used by vocalists, who are able produce it naturally with their voice. The Vibrato I have built produces this effect of pitch variation electronically. The speed at which the pitch oscillates.

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