Replacement Power Supply for Most Tech 21 Pedals Need a replacement power supply for your Tech 21 pedal? Sweetwater has you covered, with this Tech 21 DC9 9-volt DC power supply. The DC9 works with almost all Tech 21 floor pedals, except for the Richie Kotzen RK5 Signature Fly Rig V1, the Fly Rig 5, and the SansAmp Classic.Tech 21 DC9 Replacement Power Supply Features: 9-volt replacement power supply for all Tech 21 floor pedals EXCEPT the Richie Kotzen RK5 Signature Fly Rig V1, the Fly Rig 5, and the SansAmp Classic