Well, I am chuffed to bits. My radio has been fixed and the bill wasn't too horrendous. It arrived back this morning and not only has Geoff repaired it, but he has also seen to it that it has left him in as close to new condition as possible, having replaced the jack bung and the volume and squelch knobs.
So, what a relief, I am no longer non-radio. Everyone in the circuit will be pleased ;)
Thank you, Geoff.