I'm completely clueless when it comes to voltage/electronics, so I need a little help. I recently obtained a vintage Jen SX-1000 from Europe (I'm in the United States). I have two voltage converters around the house, and figured one of them would work - one is for smaller appliances and the other is for larger. Well, neither of them did. I went to the local Radio Shack and they suggested one of their models, which is exactly one that I already have at home; it was the only converter as such in the store. Before I order one online and find out it doesn't work, I wanted to see if someone could suggest what I might need. I'm attaching a picture of the sticker from the bottom of the synth that was falling off which describes the synth's specs.
Either I need some sort of converter that I don't already have and that can't simply be bought from the store, or the synth itself doesn't work (which is a possibility; I got it extremely cheap and as-is). If someone can help I'd be grateful!