Hi Friends, I started working on my M80. It needs a good cleaning, switch deoxit treatment and belt replacement. I have no idea about the belt size of this model. I really love the autotuning and sound quality of this Boombox. It is a very special Boombox one will fall in love with. I need two antennas also because both got dented segments and missing tips. When all is done it will look nice. Not heavy at all on bass but nice high notes and overall quality. Tuning is so much fun. Every collector should have an M80. Any help on M80 is greatly appreciated.