Yeah, that looks familiar, and it's as I suspected. Nothing too complicated. It's a +15VDC power supply. Where to get a transformer is the problem. The 35VDC capacitor is probably just what they had a warehouse full of. No, wait. The 35VDC caps are the input and the 16VDC caps are the output. But they look OK, although check the +15VDC one to see if that bulge on top is my imagination. If that 'X' pattern on the 35VDC caps looks like it's bulging, change all those caps too.
This is where Google or another forum member has to help. Unless Digikey or someone similar has a European warehouse, you want to find a more local supplier. But the specs ought to be 120V/15V 60Hz at maybe 500mA or even a little less. Something that will physically fit inside the unit. You'll likely have to drill some new mounting holes, but that is usually a given.