verdier Platine or Nottingham Analogue hyperspace

@lbelchev I just sent you a message. 

Hi @buyersum , I know this is an old thread, and I hope this finds you. I wondered if you could provide the circuit to the DC conversion on the PV stock motor?

Thanks!

@lewm, Thanks for the SOTA tips. I have been been looking at options for the stock motors ever since my latest system upgrades, Eminent Technology LFT-8b and a pair of Von Gaylord Nirvana 130W tube amps. The fluctuation in speed has become audibly disturbing on several records. And looking into replacement motors was, I thought,  the way to go.

However, Rudolph Ploeger of Callas Audio made a strong case of sticking with the stock motor with modification, hence my query. Frankly, I am quite uncertain which way to go. Perhaps as @ct0517 noted, a lot of misinformation with the PV's. I will PM a.s.a. I post this.

@lewm  I have revisited the SOTA website. This is a serious option. SOTA has a licensing agreement with Phoenix Engineering to use their PSU and Roadrunner since 2019. I think it was unavailable for a couple of years prior to 2019. I had been searching for one since 2018. Great news indeed. Thanks again!

In the meanwhile, I am working with @ct0517 to set up the thread drive properly. There seems to be a few fundamentals that I have over -looked.

@lbelchev, Thanks for the information. From the literature, it's obvious that there is a fair bit of thought that went into the motor construction. I  peaked into the motor housing recently, having had the turntable for almost twenty years. While not an electrical engineer, the general construction inside the housing is impressive. Somehow it doesn't square with the criticism that the motor is less than stellar.  I realised that this is a very amateurish observation.

Recently, with the  help of @ct0517 fine tuning the thread drive, I have been experiencing good results, i.e. stable pitch, with the stock motor. I still use a Sutherland Light Strobe. The indication from the strobe is that the speed is consistent, but not table at 33,33rpm,

Finally I have a question: where can I find the 'Sound Practice'? Is this a newsletter put out by JC Verdier. Can't seem to find anything on the website.