110/220VAC to 12VAC 5000mA 5A Center Tap Power Transformer 6V-0-6V 12V AC 6V x 2 | eBay
Amazon.com: Power Transformer AC 220V to Dual AC 12V Step Down Transformer Module for 2.1 Channel Amplifier Board,12V 30W(AC 220V to Dual AC 12V) : Electronics
12V-0-12V 20VA Toroidal Transformer - Low Profile | Jaycar US Site