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Questions about VPI TNT-MK-IV Platters

Hello all,
I have a friend, who owns a VPI TNT Platter. He notes slippage of the Platter on the Bearing Flange,when clamping an LP. His has a 3-point Pin System, but claims he noticed some Black "Goop" in between Platter, and Bearing Flange? Is this stuff supposed to be there, and was it used by VPI?

My MK-IV all Acrylic Lead Filled Platter never had this Goop, Doesn't ever slip, but my Spinde does have a Rubber O-Ring. He claims his doesn't?

Can any give the low down on the different version Platters of the past? Thanks, Mark
markd51

Showing 1 response by tobes

tobes's avatar
tobes
436 posts
 
There shouldn't be any requirement for 'goop' on the bearing flange. I've used the VPI lead filled platter on my TNT for about 20 years and never experienced the slippage your friend reports.
The bearing spindle on the TNT's has o-rings which grip the spindle hole of the platter fairly tightly - in fact it's awkward to lift the platter off without lifting the bearing/ spindle. You'd have to be really torquing down the clamp to move the platter levelling grub screws on the flange.
Does your friend have the o-rings on his spindle?
Which clamp does he use?
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