Hi all,
my 1210 platter appears to have what I can only describe as a wobble. Once on every rotation the tone arm visibly moves upward. The closer to the start of the record the more noticeable this is. At all other points of the rotation the arm is quite stable. I cannot hear any distortion though I would think that it is stressing the cartridge (Goldring 2400 ) quite a bit.

This effect is noticed on all LPs and I have checked that they are not bent. I have just installed the Mike New bearing but this problem was observed with the orginal stock bearing fitted also.

I have removed the platter to check the spindle hole and cannot say if it is perfectly round or not. This is the only thing I can think of that might cause this problem. I know that KAB say they will machine any platters that go to them and are found not to be true, so there does seem to be a possible problem with some platters.

Anyone care to comment or give advice on this?

Thanks,

Les