People tend to lose adapters. I've got 20 something lying around and they're all different. it's a disaster waiting to happen:-) Say you bought an omnichord without the original adapter, what to do? Best advice: get a new Qchord QCA online. Just google and they pop up everywhere. If you want to look through your old stock or pick one up from a carboot sale : Don't blow up your Omnichord, Check the polarity! So I decided to made this for you....save it, print it & happy hunting!