The Metal Feller guitar effect offers to musician the distortion type effect oriented to modern heavy styles of music. The effect is completely analog device, built by classical canons of tube schematics with tube triodes. Using the tubes provides successful combination of tube's "hotness" and compression with rigidity and aggressiveness of the sound. The schematic is completely original and custom. The device contains the switchable noise gate which allows get rid of noise withing the pauses of sound.