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guitar fuzz effect

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Hi Josh,
Severe distortion produces fuzz.

The diodes are in the negative feedback path of the opamp. The opamp will operate normally and will have a very high gain when its output level is less than about 1.2V peak-to-peak. When the output level tries to climb above 1.2V peak-to-peak then the diodes conduct and suddenly reduce the gain so that the output level cannot exceed 1.2V peak-to-peak which produces severe distortion. The output becomes slightly rounded square-waves.

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