Boss GE-7 Modified True Bypass & Noiseless Equalizer MIT 2002 Used Fm JP#MP58507
Modified part_2:【C21(1μF)】【C22(1μF)】【C32(1μF)】【C12(47μF)】【C17(100μF)】The capacitors were changed to audio grade electrolytic capacitors or tantalum capacitor. Therefore, it can be used only with a 9-volt DC adapter.