![Electro Harmonix Deluxe Bass Big Muff Pi Distortion/sustainer Battery Inc, 9.6dc-200 Psu Optional - Chitarre - Effetti - Distorsori | Music Works Electro Harmonix Deluxe Bass Big Muff Pi Distortion/sustainer Battery Inc, 9.6dc-200 Psu Optional - Chitarre - Effetti - Distorsori | Music Works](https://lnx.musicworks.it/model_img13/41253151_1.jpg)
Electro Harmonix Deluxe Bass Big Muff Pi Distortion/sustainer Battery Inc, 9.6dc-200 Psu Optional - Chitarre - Effetti - Distorsori | Music Works
![Picked up a Big Muff from a friend, but realized it won't work with an external power supply. Opened it to remove the battery, and looks like this guy is completely rusted Picked up a Big Muff from a friend, but realized it won't work with an external power supply. Opened it to remove the battery, and looks like this guy is completely rusted](https://external-preview.redd.it/bXUGF9VR0v5riEAYJL5x_IQ3uwUhpXU_kTDkT2L4BL4.jpg?auto=webp&s=5717de6d8b7b7952339a5e75604d5363a2be5950)
Picked up a Big Muff from a friend, but realized it won't work with an external power supply. Opened it to remove the battery, and looks like this guy is completely rusted
![Electro Harmonix Big Muff Pi (classic) Distortion/sustainer Battery Included, 9.6dc-200 Psu Optional - Chitarre - Effetti - Distorsori | Music Works Electro Harmonix Big Muff Pi (classic) Distortion/sustainer Battery Included, 9.6dc-200 Psu Optional - Chitarre - Effetti - Distorsori | Music Works](https://lnx.musicworks.it/model_img13/ORIG_41253207.jpg)