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In the Forum: Analog Playback
In the Thread: A longer turntable belt.
Post Subject: a complex physics problemPosted by drdna on: 2/3/2006
 Romy the Cat wrote:
If I would like have two platters of identical diameter of different masses (lets call it full-mass on right and half-mass on left) to be driven by a single motor, what do you feel would be the most suitable configuration?


A presents complex torque issues due to the platter mass assymmetry
D, F have very small platter-belt contact areas
B, C, D, F appear to have the same impedence matching issues, topologically.
E is the most complex to execute, so there are more things to go wrong but it avoids these other issues.

 Romy the Cat wrote:
... what do you feel would be the most suitable configuration?


Suitable is not a very clear term.  Each configuration achieves different objectives.
A allows a good comparison of platters.
C, E allow optimization of platter 1's sound more easily (more variables)
E allows optimization of platter 2's sound more easily (more variables)

A very complex situation.  What you choose depends on what your objective is.  Ultimately, the result may still be a surprise, and I would not exclude anything on the basis of theories.

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