TD160 manuals in html:
Thorens TD16x manuals in PDF
TD166_sv Manual in English (service manual)
Suspension Tuning by Tim Bailey
Above: just a sketch
Thorens tweaks page by Webmaster. This page started out as a 'Chadwick Mods' page and has since turned into a more conservative and hopefully intelligent approach to getting more out of the TD160C.
http://edimba.tripod.com/PDF/PDF.html online user manuals for a variety of Thorens tables in PDF and HTML.
http://www.stefanopasini.it/Audio_index_Thorens.htm a great site with a picture history of Thorens tables.
http://www.stefanopasini.it/images/Thor1215.pdf an informative Thorens history article by Stefano Pasini. (highly recommended)
http://www.audioinvest.no/ some useful specs and history in general on Thorens and other turntables
TD-160 MK I info sheet. Thanks to Ed Alderson for this scan. Ed bought his TD-160 new back in 1975 and was offered this propaganda sheet prior to making his purchase. Notice the close-up picture of the motor pulley indicates the absence of any safety post. File size 129K .
Some Thorens TD160 and TD160Super info in there...! Many have been searching for the info in these articles. Thanks to Jack Leong for these scans.
Thanks to '2Channelman' for this picture.
About The THORENS synchronous drive motors.
The TD-160 is driven by a 16 pole two-phase synchronous motor. This motor has two identical stators which work on the rotor at an angle of precisely 90° to one another.
The speed of rotation is determined by the power frequency and by the number of poles used and, therefore, this will always remain constant regardless of aging, dirt or climatic conditions.
Motor rpm at 50 hz mains frequency: 375 (50 hz / 8 x 60 = 375) @33-1/3rd platter rpm
Motor rpm at 60 hz mains frequency: 450 (60 hz / 8 x 60 = 450) @33-1/3rd platter rpm
A different diameter pulley is used in either case to arrive at a precise 33-1/3 and 45 platter rpm.
***Current source for both 60 hz and 50 hz clutch pulleys: http://www.audiosilente.com/
Simone Lucchetti, proprietor at Audiosilente, has machined aluminum clutch pulleys for the TD16x models. These will also work on the TD150. He sells on ebay using the seller id: audiosilente
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Other uses of the AC synchronous motor: electric clock before the quartz oscillator came into popular use for time keeping. Prior to the quartz oscillator, good quality electric wall clocks were often regarded as being much more accurate than a mechanical clock or watch of the same era.
an SME armboard for the TD160