The optical turntable

softspeaker
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The optical turntable

Postby softspeaker » 24 Jul 2014, 12:01

http://www.christerhamp.se/phono/poliak.html
Conclusion

A turntable based on an entirely new principle (patented) allowing to read old records, discs and cylinders in good or bad condition has been built, and tested on various discs. The playing of archive records not playable by classical means because of their bad state of preservation has been successfully demonstrated on various specimens put at our disposal by the Radio TV Suisse Romande, Lausanne. The results with modern discs in good condition 33, 45 or 78 rpm are equivalent to those of a normal pick-up.

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