In Reply to: I would have thought Thorens posted by Awe-d-o-file on August 20, 2016 at 15:01:18:
Atma-Sphere Music Systems controls the patent for a servo control of a Circlotron circuit in the US.
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Follow Ups
- The Thorens preamp is a patent infringement - Ralph 12:26:55 08/22/16 (0)