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Electro-Harmonix Big Muff Pi OP-AMP 1978 ic vintage :
$250.00
I guess this is fair to good. It has plenty of patina as many of these do. This is an op amp or ic model from 1978. It has the rare? smaller green board that some say is more desirable with the 1322 stamp marking. This one works fine with the wall of sound distortion fuzz. The switch on top is an on off switch like the later models. I don\'t know if this is a transitional piece or if someone modified it that way. Ive had it 10 years and never modified the circuit I have priced it below others and it is purchased as is.The Vintage Electro-Harmonix Big Muff Pi OP-AMP V4 is a rare and sought-after effects pedal made in the United States circa 1978. This analog distortion pedal is designed for electric guitars and is known for its classic fuzz and muff tones. With its iconic brand and model, this unit offers guitarists a unique and high-quality sound for their music. Perfect for musicians looking to add a vintage touch to their pedalboard, the Electro-Harmonix Big Muff Pi OP-AMP V4 is a timeless piece of gear for creating distinctive and powerful guitar tones.
