Okay, this is from memory, it's been too many years since I sold these turntables.
The MkII replaced the original aluminum platter with an acrylic/lead platter. The plinth was stiffened with a second piece of steel, and the suspension was different (the pads that seated the springs on the plinth originally had tiny tip toes glued on to them. These were removed on the MKII. The bearing was changed, but there were a number of bearing changes made at this time, so I'm not clear on what the "official" bearing was. The spindle was threaded to accept the clamp.
The MKIII included the acrylic plinth, motor plate, and acrylic motor pulley. The hardwood frame was given a rounded outer edge instead of the original camfer. The aluminum suspension pads were replaced with an acrylic pad with small bearings inserted. There may have been a change to the springs (I'm thinking removal of the foam damping blocks.)
A google search may point out other changes.
The MkII replaced the original aluminum platter with an acrylic/lead platter. The plinth was stiffened with a second piece of steel, and the suspension was different (the pads that seated the springs on the plinth originally had tiny tip toes glued on to them. These were removed on the MKII. The bearing was changed, but there were a number of bearing changes made at this time, so I'm not clear on what the "official" bearing was. The spindle was threaded to accept the clamp.
The MKIII included the acrylic plinth, motor plate, and acrylic motor pulley. The hardwood frame was given a rounded outer edge instead of the original camfer. The aluminum suspension pads were replaced with an acrylic pad with small bearings inserted. There may have been a change to the springs (I'm thinking removal of the foam damping blocks.)
A google search may point out other changes.