The tape deck on my mum's Beocentre 8000. 20 quid of new belts, scrap and wipe the old belts off, fandangle the new ones in . . . fix another problem causing the heads to not come out properly . . . remove more circuit boards to find the screw that ran under them and refused to be shaken out . . . and it now plays tapes for probably the first time this century 
