The MT10 MOSTORTION The original MT10 MOSTORTION was released in 1990 as part of a budget pedal series to meet the demand of a growing market. Despite the pedal's "cheaper" qualities, guitarists began to take note of its amp-like low-gain tones, attributing them—arguably incorrectly—to the onboard MOSFET Op-amps. Though the pedals were discontinued a couple of years later, used ones command insane prices today and are extremely hard to find. The Mofetta is Wampler’s way of bringing it all back and re-creating those singing tones while diving even further into the amp-like world of MOSFETs.