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Dealing with pedal power and specs & Guitar Pedal power supply
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Boss ACA & PSA – what gives? – stinkfoot.se
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Positive tip or negative tip – stinkfoot.se
Adapter Reverse Polarity Negative Boss | Power Supply 9v Reverse Polarity - Ac /dc 9v - Aliexpress
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BOSS - FS-5U - Momentary Footswitch w/ Polarity Selector - x7750 (USED) | Reverb
BOSS FS-5U Non Latching Footswitch Guitar Effects Pedal w/ Polarity Switch 761294081549 | eBay
