Sorry,radio is back in allready.
if you look at the pic,there are 4 blackish bubbles in a row in the middle and at the bottom,2 more at the far left top and bottom.
the bulbs are about 12 mm long and 4 mm across with the leads straight trough the circuit board and soldered on the other side.
I crushed 1 of these bulbs so the leads are still there,and should be plenty long to solder another bulb to it without compromising the delicate board.
If you can find some bulbs,it's doable i think.
Let me know