2020 update : JC Verdier La Platine


A recent encounter with a JC Verdier dealer as well as a recent Audiogon discussion thread led to the start of this thread. He was in my house updating my La Platine which had been in storage for ten years with thread and oil. While he has high regards for the deck, his newer clients nevertheless prefer a Techdas iii than an 'old' La Platine. Given the proliferation of expensive decks in the past dozen years, La Platine has become very much under-appreciated. 

It's clear to me that the influence of the La Platine is everywhere to be found. Specifically, the magnetic suspension system that was employed 30+ years ago. Even SOTA offers their newer decks with mag. lev. features. And if you read this review: https://www.callas-audio.nl/Callas%20Platine%20Mod%20Kit%20Review.pdf, the Continuum Caliburn uses the same concept, which was not acknowledged in Fremer's review, albeit with more sophisticated , and expensive, execution.

It is also clear to me that there is much misunderstanding of the workings of the La Platine. I for one have contributed to this. The motor of the La Platine, for example, has been much maligned. The thread drive is another aspect of the turntable that have been described as inferior. With regard to the motor and thread drive, I have been set straight by Chris @ct0517 and Lyubomir @lbelchev. Experimenting with the different types of silk threads, the tightness to the platter  and a renewed understanding of the soundness of the Philips motor have been rewarded with better dynamics and transparency. 

The funny thing is that during the past two years of re-engagement with audio, I have questioned ownership of every components in my arsenal except the La Platine. It has always been a keeper. I wonder if La Platine owners would contribute to celebrating this 'old' deck with tales, advice, and insights?

Cheers!
ledoux1238
@topoxforddoc I don't know if GT Audio still sells the battery PSU. It doesn't show up on its web-site. I assume you had to modify the stock motor housing ( drilling  few holes ) for the connecting cables, correct?

Callas Audio also provided schematics and instruction DIY a battery PSU many years ago. It is the one that I will most likely build with the help of a technician.
@ledoux1238 You could try emailing Graham Tricker at GT Audio/TRON. He is very helpful and might consider building one, if the metal work is available. Yes, you do have to drill a small hole into the motor housing.
@ledoux1238
Were you using the thread drive before?

A: Yes I always use linen thread.
I made also tests with silk, kevlar thread. figures were very bad for kevlar.

2. Will the motor spindle on the SOTA Eclipse accommodate a thread drive? I believe the reduction in W&F reading is due to the belt acting on the platter.

A: Yes I used the motor and the pulley provided by Sota to test thread and 1/4 magnetic tape as a belt (like Galibier or Artemis lab). You right about W&F. I used also a long belt 150mm, not a good idea. I think a shorter will be better with the motor close to the plinth.

3. Have you tried a tape drive offered by Galibier, say?

A: yes very good figures in terms of speed accuracy with magnetic tape, but bad in terms of W&F. I try to found a kapton belt like the one provided by Galibier.

4. Does the motor come with its own housing or do you have to build one? I meant to write to SOTA, but never got around to it.

A: I made one compact wood box filled with hunting lead (around 6kg) for the motor.

5. What arm and cartridge are you using?

The arm I used at this moment is a FunkFirm FX3 (after a Schroder ) with a Sculpture A A4 silver coils cartridge (a french handmade cartridge, available by the way in NA see Artisan Fidelity or Sonare Coeli for exemple)

6. Would you say the sonic improvements were across the board and immediately noticeable?

YEs and I made measures and records (same 30 seconds track of piano solo) . I share them on a very popular forum in France and people were able to listen the difference between stock motor and Sota combo. Better bass, stability and also clarity. the speed accuracy is better also
@ledoux - do you get speed drift still? have you checked speed variation while a record is being played - especially very heavy passages - there's a great demo of a JVC direct drive with 3 arms and a laser dot that simply doesn't move when the arms are on it.
FYI have you tried contacting graham tricker from tron audio in the UK? he does a motor and speed control for the platine
@xdr Greatly appreciate your responses. It’s great to visualize through photos of your system the SOTA / Roadrunner in action. I see a belt drive, but it can be switched to a thread drive, correct?

You have a lovely system / room, with lots of French stuff unknown to me...... except, of course, the French TT. I especially like your spartan listening chair. I have a Garbriele Mucchi’s Genni chair myself.

@lohanimal Yes, speed still drifts. Some days when the gods, temperature and humidity aligns, I get a few sides of records with speed spot on. I am, however,  enjoying music.

Graham Tricker will be on my list of people to query. I somehow remember that he used to carry JC verdier TT’s. And he dropped the brand when he took on TW  Acustic, implying that La Platine was not comparable to the German tables. 

I look forward to your DD table project.