Turntable speed accuracy

Sometimes threads do accidentally get 'wiped' by an administrator.
It's happened to me twice and when I contacted A'Gon ........they retrieved them.
Have you tried that?

Dear Thuchan, Syntax' comment on "sound quality not related to speed accuracy" points to the fact that the sound quality per se is not in the speed accuracy.
Speed accuracy in a turntable is an undisputed conditio sine qua non.
If a turntable isn't able to hold the 33 1/3 (and the other speeds required..) it isn't worth discussing about sound quality at all.
In the first shoot out in San Antonio between a serious DD and a serious thread drive turntable, we all 3 - Unoear, Syntax and me - heard that there are sonic qualities which go way beyond speed accuracy-related phenomenons.
Speed accuracy is a basic request for any serious turntable.
Here it starts off - it certainly doesn't end here, it is rather the beginning.

Deartoenarm,
agree with your preconditions being set. Unfortunately the reality regarding some running tables looks sometimes different due to weak motors, belts changing the consistency, no built in or used precison control instruments etc. The new TechDas AirForce seems to offer some nice features. On the other hand I would have wished a two sided belt driven system.

best @ fun only

Dear Thuchan, Our German friends are obviously searching for the new or added preconditions which are yet not known.
If they were known and technicaly solvable then probable
there would be no or less problems with those damn TT's.

Regards,

I discovered that removing one of the three motors of the Raven AC-3 (aka Raven AC-2)......the turntable was able to maintain far more accurate speed control than with the three motors.
Perhaps the belt stretch or slippage is increased with the three motors?......or the greater contact of the belt on the platter with two motors is the reason?
I can't wait to try a Bavarian thread in place of the rubber belt?
Are you listening D? :^)