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Platter wobble

I have a Technics SL-BD20D and the platter has a noticeable wobble while spinning. ive tried a couple mats - cork and acrylic - which made the wobble much more apparent.  The rigid acrylic platter would not lay flat on the platter. 

Anything I can do? Is there a way to test what the issue is?  Is there an quality aftermarket platter that I can use?

Thanks!
leemaze

Showing 3 responses by petg60

petg60
1,486 posts
 
As platter is not stiff you can carefully bend some areas and bring it to shape. It will take some time, even though you may get close enough it will never be perfect. Don't spend your money on buying a new one as wobble will be apparent also.
petg60
1,486 posts
 
Nearly all aluminum type platters at this price point (due to thickness) suffer mostly the same. A bearing would not produce wobble but noise. SLBD20 does not have an acrylic platter. If mat does not sit properly on platter then platter has an issue.
petg60
1,486 posts
 
leemaze, do not bother with other mat than rubber, it is fine (rubber takes shape easier and suits your tt fine). You will benefit a worthwhile improvement by going to an upmarket tt.
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