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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

Showing 2 responses by lharasim

lharasim
130 posts
 
Here is my vid of me touching the side to test pulsed speed stability... it is a hung suspended table so you may see it move alittle actually its just the suspension moving laterally
http://www.youtube.com/watch?v=PB2TaN2FPRU&feature=youtu.bey... no movement on the strobe!
lharasim
130 posts
 
I really enjoy reading about this topic!. as most of us have been through many different TT combinations etc.. think its possible to come up with a workable compromise..

I did post up a video but some people had a laugh at it as i have no idea why but it clearly showed with a hi quality strobe that groove modulations and my finger did not pose a problem for this fantastic turntable...let me tell you i put a fair amount of pressure much more then 20 tonearms!

The table is the Pioneer pl L1000A.... quiet as its kept, it has some of the best electronics for controlling the hung rotor motor! If i had a timeline or equivalent i would post up a video but i do not ...anyone want to borrow one?

Lawrence
Fidelity_Forward
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