
Disambiguation
RAT-into-Big Muff hybrid using NOS Soviet KT3201EM transistors and UD1408A op-amp.
Drunk Beaver is a Polish pedal company founded by Ukrainian builder Vitalii Bobrov, known for mashing together classic circuits with NOS Soviet components.
The Disambiguation replaces the Big Muff's input and gain stage with a RAT circuit, then feeds it into a Muff-style tone stack and JFET output stage. The result is a colossal mid-hump that neither circuit produces alone. NOS Soviet KT3201EM transistors and KD521 diodes (same as a vintage Red Army Big Muff) pair with a UD1408A op-amp from Kvazar in Kyiv.
Distortion, Tone, and Volume controls keep things simple. The Tone knob works like a standard Big Muff tone stack, sweeping from bass-heavy to treble-forward. Discontinued but highly rated, this one earned 5 stars across 13 reviews before leaving the lineup. Draws just 2.3mA.


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