I think you mean phono sockets...:-)
You probably need one of these((!):
The Pure Digital Evoke digital radio, for instance, has a line out for stereo record or output via separate amp and speakers using a 3.5mm socket on the rear panel, so it might be that using your headphone audio output in similar fashion could work, depending on its specification.
I would follow up A_World_Maker's suggestion of asking an electronics expert - my best mate is one but unfortunately he's not contactable at present...