![Boss GE-7 Equalizer EQ Pedal Made in Japan Black Label 1988 w/ACA adapter | Murphy's Music | Instruments | Lessons | Melville Boss GE-7 Equalizer EQ Pedal Made in Japan Black Label 1988 w/ACA adapter | Murphy's Music | Instruments | Lessons | Melville](https://murphysmusicshop.com/wp-content/uploads/2023/02/axh55jvfryscbif0nykl.jpg)
Boss GE-7 Equalizer EQ Pedal Made in Japan Black Label 1988 w/ACA adapter | Murphy's Music | Instruments | Lessons | Melville
![Bought a used Boss GE-7 and found this mod inside. Pedal doesn't work with a battery but works fine with a power supply. Any idea what the previous owner tried to do? : Bought a used Boss GE-7 and found this mod inside. Pedal doesn't work with a battery but works fine with a power supply. Any idea what the previous owner tried to do? :](https://preview.redd.it/w0g4mcr6agb31.jpg?width=640&crop=smart&auto=webp&s=0b91289f33a6dd0387ebbe72180ede0695fe2d52)
Bought a used Boss GE-7 and found this mod inside. Pedal doesn't work with a battery but works fine with a power supply. Any idea what the previous owner tried to do? :
![Boss GE-7 Equalizer EQ Pedal Made in Japan Black Label 1988 w/ACA adapter | Murphy's Music | Instruments | Lessons | Melville Boss GE-7 Equalizer EQ Pedal Made in Japan Black Label 1988 w/ACA adapter | Murphy's Music | Instruments | Lessons | Melville](https://murphysmusicshop.com/wp-content/uploads/2023/02/zl2nr2er5hqt3wlily6p.jpg)