Turntable speed accuracy

Ketchup: " That seemingly "slow" result could simply be because of the LP slipping on the platter, not the platter slowing down due to the stylus drag."

That's easy to figure out. Simply stick a piece of tape with, say, a pencil mark on the edge of the record line up with another mark on the platter and then check their alignment after the speed test to see for any drift or slippage. This was proposed by a smart forum member (Dertonarm) before.

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TIMELINE
Here is the video with the Timeline on the Transrotor Fat Bob which has a massive platter.
Watch how the Timeline immediately slows when the stylus is lowered?

The Timeline is also sold as a 'record weight'....although on the light side.
It is fairly easy to see if slippage is causing a problem by using the Timeline without a stylus playing firstly, then with a stylus playing on the mat and then without the mat or a different mat. It's not rocket science but this mentality of assuming the Timeline is somehow wrong and the turntable correct.......is the real problem here?

Regardless of what the speed inaccuracy is due to.......one must find it and correct it as it is distortion of the analogue sine wave...pure and simple.
The Timeline will show it....and you must correct it. Not look for excuses :^)

Hi Lew - regarding the Lenco l75. Can you please do the testing with and without the Walker motor controller. I realize setting the motor speed with the original slider is a bit of a pain. Am very interested in your impressions findings between the two.
Cheers

Hi Henry
I just re-read what you wrote. I am assuming when you say

“ In this.....a belt or thread drive is at a severe disadvantage”

that this is your opinion only.

Have you heard a string drive TT that was designed by its manufacturer for the use of string ?

Cheers Chris