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After market Motor + Belt drive for Verdier

I have been looking to upgrade my TT motor and belt drive for some time now. I use a Nouvelle Verdier and its only sore point is its motor and silk thread drive. It is not bad, it gets the job done. The sound is neat and in general non-offensive. However, when I used a 0.25 inch magnetic tape (reel to reel) to drive the platter the overall sound became more dynamic, voices sounded younger, instruments sounded happier. It was as if the pitch of all the instruments became more realistic. But then I also heard more of the irregularities of the motor rotation, the timing of instruments messed up a little. The background was no more as clean as the thread drive.

This told me two things:
1. Silk thread is good but it affects music in a way that makes the performance a bit sleepy.

2. The stock motor is not good enough to accommodate a tighter coupling with the platter.

So, I am now looking for after market motor and belt drive solution. I looked at Teres motor but for that to work they require a sensor to be placed under the platter but my TT doesnt have enough gap between the platter and plinth to place the sensor. I am looking for some viable suggestions here.

A friend of mine suggested me to consider a flywheel between the motor and the platter which will absorb the motor irregularities. I dont know if it is worth a try because I see many good TTs do not have a flywheel, that means a good motor is all I need I guess but I am open to the flywheel idea also.
pani
ct0517's avatar
ct0517
2,041 posts
 
Ct0517, the voltage regulator is already in your PV motor controller. You will simply connect the battery in place of the wall-powered supply. Picture this---the PV motor runs on DC and the motor speed is controlled by the exact DC voltage fed to the motor. The controller is simply a voltage regulator that allows the user to change the DC voltage slightly in order to adjust the motor speed and then maintain it at a constant speed.

Salectric – thanks for the info. let me understand something. I am not an electrician.

My term voltage regulator was probably the wrong word. How about voltage converter ?

The Platine motor is a DC motor with a voltage regulator.
The AC current from the wall is 120volts.
The Platine motor is doing a voltage conversion from AC to DC ?

Adding a battery is raw DC power.

What happens with the Platines voltage converter which is expecting AC current ?

Will I not fry the converter with raw DC power from a battery or does it just bypass it ?

Thanks.
salectric
768 posts
 
It sounds like your present power supply is in the same box as the controller. (It's been too long since I saw a PV for me to recall how it was laid out.) That will mean someone will have to open up the box and attach some leads that bypass the internal power supply so the battery can be connected directly to the controller/regulator circuitry. This is quite easy to do for someone who has some minimal experience in electronics.
ct0517's avatar
ct0517
2,041 posts
 
Thanks Salectric - that makes sense. Cheers
rugyboogie
199 posts
 
Ct0517
Sending you schematic on how to change from AC to DC.
ct0517's avatar
ct0517
2,041 posts
 
Thanks Rugyboogie (RB)
Pani, RB, Maril others. I have been preparing my room and my listening for two OTL amps arriving within two weeks. Once I have settled into the sound will hookup to battery and will I also scrounge around for a cassette tape.

Pls try when you can the small wood blocks under the plinth. Three small blocks next to the existing feet. It takes a few seconds to insert them and remove. Interested in your impressions.
Cheers
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