The Electro Harmonix 12AC-1000 Power Supply is the official power supply by electro harmonix designed specifically for their range of 12V pedals. This UK Power Supply features a strong construction and offers clean noise free power to your pedal. Recommended for the Following Electro-Harmonix Effects Pedals Hot Tubes Tube Zipper The Wiggler Black Finger English Muffin Tube EQ 12AY7 Mic Preamp LPB 2UBE