Larryi,
Is your spindle threaded? If so you could try threaded clamps like those from VPI or Teres. I don't know about the VPI but a Teres clamp has room for O-rings on TOP of the record if that's needed for the vacuum to seal.
Interesting report that even a vacuum platter can benefit from a periphery clamp. I guess that confirms what we heard, resonance control is actually a bigger benefit than warp flattening.
Doug
Is your spindle threaded? If so you could try threaded clamps like those from VPI or Teres. I don't know about the VPI but a Teres clamp has room for O-rings on TOP of the record if that's needed for the vacuum to seal.
Interesting report that even a vacuum platter can benefit from a periphery clamp. I guess that confirms what we heard, resonance control is actually a bigger benefit than warp flattening.
Doug