I have a CD52Mk2, which is a lovely CD player, but the idler pinion that drives the CD tray is knackered and needs replacing. I found what I think is it, on the web at Donberg electronics, (Ireland) , but it seems these are not now available. I note on the CD50 thread that the tray mechanism seems the same,and that it may be quite a common one. Can anyone suggest a source?