An effect pedal part is an electronic or digital device that alters the sound of a musical instrument or other audio source. Common effects include distortion/overdrive, often used with electric guitar in electric blues and rock music. Such as Guitar Effects 3PDT 9 PINS Foot Switch which is from Hireyele. The item can be used to rewire vintage pedals or effects boxes. For unbuffered bypassing/true bypass of the effect circuit without coloring the tone of the instrument or other components in the signal chain. There are a total of 9 lugs on each switch, three per pole. The third pole can be wired to control an LED status light or other custom function. Pls kindly find the pictures as below.

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