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HomeBrew Electronics Uno Mos MOSFET Preamp Guitar Effects Pedal


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Up for sale, a HomeBrew Electronics Uno Mos MOSFET preamp boost pedal in perfect working order. Handbuilt in the USA, the Uno Mos is a single-channel boost with up to 30 dB of boost. When cranked, it delivers a gritty, bluesy sound with just enough dirt and crunch to push an amp into creamy breakup. With just a single Gain knob, ranging from -10dB to +30dB, it’s exceedingly user-friendly, packing plenty of tone and functionality into a small, pedalboard-friendly package with true bypass switching.

This enclosure has a fair number of honest nicks, yet retains the original knob and clean graphics. The bottom of the enclosure still has the factory silver foil sticker.