[Arran]

It isn't usually a problem to power a 50 cycle device on 60 cycle, unless it has an AC motor in it in which case the motor may spin faster. Transformers usually don't care if they are operated at a higher line frequency, within reason of course, but they don't like the opposite. Most European radios have taps on the transformer primary that allow operation on several different line voltages, sometimes it's a plug on the transformer, other times there is a wire that you have to undo from a screw terminal and move to another terminal. You may have to remove the back to get at it if it has a voltage selector, if not come back to us for a plan "B". This Hornyphon looks like a later model from the 1960s if the eye tube is any indication, it looks like an EM84.
Regards
Arran