Further to my last posting I also have an older Beogram 1000 with an SP7 cartridge (I think as it's unmarked but has the raised bezel).  The stylus needs replacing on this too but the stylus casing sleeve seems to be stick fast - probably corroded onto the cartridge.  Does anyone have any tips for easing this off without destroying it?

Can be very stiff! Afraid you just have to pull! The cartridge body seems pretty tough! Make sure the screw is undone!