This pedal is designed to emulate the sound of a cranked 5E3 Tweed amplifier.    PCB (GUITAR BOOST PCB) This PCB allows to build several projects: LINEAR POWER BOOSTER, BASS BOOSTER HOGS FOOT, TREBLE BOOSTER SCREAMING BIRD, TREBLE BOOSTER BRIAN MAY, ELECTRA DISTORTION, CHAMP and WOODROW.