Check the listing for details. Vintage Electro-Harmonix Big Muff Pi v2 1970s. Condition: Used. Listed at 1297.00 USD. The pedal has been tested and is working. See a video of my friend triggering it and playing with it. The battery terminal is free from corrosion. There are no screws. I did not attempt cleaning the surface of the pedal as I will leave it to the buyer. The Vintage Electro-Harmonix Big Muff Pi v2 from the 1970s is a classic analog fuzz pedal known for its warm and gritty sound. Made by Electro-Harmonix, this model is highly sought after by musicians for its distinctive tone and vintage charm. With its simple design and analog technology, the Big Muff Pi v2 offers a unique and vintage sound that has been used by countless musicians across different genres. Its timeless appeal and iconic status among guitarists make it a must-have pedal for any music enthusiast.