Turntable speed accuracy


There is another thread (about the NVS table) which has a subordinate discussion about turntable speed accuracy and different methods of checking. Some suggest using the Timeline laser, others use a strobe disk.

I assume everyone agrees that speed accuracy is of utmost importance. What is the best way to verify results? What is the most speed-accurate drive method? And is speed accuracy really the most important consideration for proper turntable design or are there some compromises with certain drive types that make others still viable?
peterayer
Hey Geoch, Nandric is right. You will definitely get a good price in the German market for your TT. I have seen one in an exclusive High End shop recently. They sell it as a Brinkmann Project.
I would rather go on ebay, maybe ebay.com than on Audio Markt. At Audio Markt you will be confronted with lots of stupid questions. No need for this experience.

Best @ Good Luck
Dear Thuchan, thank you for your interest. A price of 5000 EURO is enough for me, but I'm not really prepeared to mess with packaging this monster. The company's original package was a joke : 3 big boxes full of urethane chips and nothing else. Anyway I'm glad that you guys want to help me with your advice. It's good to know that I have international friends.
Dear Thuchan, With all your gear (past and present) you of course have much more experience with selling than I. But I have much more time to watch the 'markets' mentioned. Ebay.de is different than audio-markt.de . The latest one
is more suitable for the items with an 'fixed price' in mind ,the former if one has a vaque idea about the price. The listing time is also different: 10 days versus 1 month
min. Ebay.com is more problematic for his TT because of
the postage cost and transport outside of Europe. But like you I also prefer ebay.de. In casu however it is about Geoch and the question what may be the best solution for his problem.

Geoch, Since Brinkmann was employee by Symphonic line it may be the case that he designed this TT? To me your TT looks like an Brinkmann TT.

Regards,
Certainly looks like a Brinkmann but the bearing is quite different and unique. I find it quite unlikely if Brinkmann designed this bearing 20 years back and now abandoned this in favour of the very small & plain bearing inside the new TTs with Brinkmann logo. Honestly I don't really care (as I would'nt trade it for a Brinkmann TT). The only thing that I would miss is the helpfull armboard.
Lewm: "Do you mean to say that the Cosmos is subject to M Fremer's critique (motor mounted to base/platter on spring suspension, which is also my criticism), or not?"

The Cosmos had the motor and platter mounted on the same subchassis, according to a review in the old AUDIO magazine and Stereophile, therefore it is an improvement over the earlier Sapphire and Star in terms of speed stability. Cosmos's design was largely responsible by the talented Allen Perkins of now Spiral Groove and he is one designer who does care about speed issues.

Atmasphere is right that Empire had the foresight to do the same thing in the 208 decades ago and is one of the greatest vintage turntables. Respect!

P.S. Linn has a fixed motor and suspended platter.

_______