Late 70s op-amp Muff Reissue
https://www.sweetwater.com/store/detail/OpAmpBigMuff
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NOS 1970's Electro-Harmonix Muff Fuzz With Original Box!Mint, Unused ConditionThis original 1970s Electro-Harmonix Muff Fuzz is a vintage two-transistor fuzz effect known for its simple circuit, heavy boost, and distinct sound that cleans up well with guitar volume control. Circuit Design: The original Muff Fuzz uses a simple two-transistor circuit (an "English Fuzz topology") and is not an op-amp design. Later versions of the larger Big Muff Pi, in the late 70s, did use op-amps instead of transistors.Sound: Praised for its ability to deliver a heavy boost with "bite," capable of achieving a classic 70's psychedelic fuzz tone. It is known for having a different character from the Big Muff Pi, offering harmonic clarity and less "muffy" saturation when maxed out.Controls: Just one knob, an Off/Boost switch and two female jacks.Collectibility: Vintage 1970s Muff Fuzz pedals are highly sought after. The condition and original box make this one a must-have!

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