Octave Audio

Thorens TD 124 Complete restoration and service

Our technical staff have been specially trained in the restoration and servicing of the TD 124 by the former Head of Development of Thorens Audio Division.

E 50 Motor Restoration

The fundamental problem of the TD 124 was (and remains) the motor a problem which is, incidentally, common to all other turntables using the E 50 motor. The motor, which was not produced by Thorens but sourced from suppliers, inevitably suffered from technical limitations, namely the quality of the bearing. Cost considerations at the beginning of the 60's an E 50-type motor cost some 10 euros to manufacture meant that the motor quality is simply no match for the other elements which define the astonishing overall quality of the TD 124. The original motor bearings were made from tinned bronze. After 40 years, these have become dried and brittle. No simple oiling can solve the problem.

Now, after many years of research and experimentation, we can offer a bearing for the E 50 motor which has been designed without cost compromise, to tolerances of 1/1000 mm. We install the bearing and replace all worn parts, after which the motor is run in for one week. The motor is then opened once more to remove any loose filings, after which it is precisely calibrated. The motor is replaced in the chassis and run for an additional week under real-world conditions, after which all chassis elements are finely adjusted. The motor restoration results in the following:

  • At 33 RPM proper speed is reached after only one platter rotation.
  • Speed stability remains absolutely constant.
  • Measurably lower noise and vibration.
  • Years of trouble-free turntable use.

The TD 124 is said to "rumble". However, this rumble is not produced by the idler wheel drive mechanism, but where present results from vibrations caused by vibrating, poorly-mounted motors. Our TD 124 service results in measurable performance equal to that of a modern high-end turntable.

For the TD 124 Series I we offer the motor mount replacement system for the Series II. The replacement motor mount forms part of the Series I motor rebuild and service.

PLEASE NOTE:

  • We cannot repair replacement Papst motors.
  • The chassis must be complete! we do not replace missing parts. Only complete chassis will be accepted for service.
  • We are frequently asked if the idler wheel is routinely replaced as part of the service. This is only rarely necessary in 90% of all cases the idler wheel can be successfully restored. However, for customers desiring a new idler wheel, a replacement unit can be supplied and will be separately billed.

Chassis Restoration and Service

The chassis is completely disassembled and cleaned of all oil and grease. All parts, fixed and moving, are replaced as necessary, and the chassis is greased and oiled according to original factory specifications. The motor is reinstalled and the entire drive mechanism precisely adjusted for optimum performance based on our unique access to the original manufacturing and servicing procedures. The turntable is tested, run in and checked under precise conditions for one entire week before being professionally packed and returned to the client. Our complete restoration service builds on generations of Thorens' own experience, to which we are able to bring techniques which the company developed in the laboratory but was unable to implement due to cost considerations. We can say with confidence that your TD 124 will perform today better than when it originally left the factory!

New: Color Restoration of the chassis

Main Platter Bearing Replacement

The main platter bearing receives a complete service using our Repair Kit 3002. For optimum performance, the bearings are polished, following which the bearing is tested for one week, together with the chassis.

Pricing Information

Motor and chassis Revision $990.00 usd

Motor only $590.00usd

Shipping of your Thorens TD 124 is not included.

Reports

Noise spectrum Anlaysis before and
after the restoration

Analysis 1 Analysis 2