I'm using my BOSS AC adapter now. No problems at all but I was wondering if these things are standard? Can I buy one of these at any electronics store? I think they go for $25 CDN at the music store. Here's what the thing says: Tech 21 New York City Class 2 Transformer Model No. DC2 Input: 120 VAC 60Hz 5W Output: 9 VDC 100mA FPD-9-100 So can I order a Class 2 Transformer from any store? Do I need to specify a specific jack?