Turnable database with TimeLine


Here is a database showing various turntables being tested for speed accuracy and speed consistency using the Sutherland TimeLine strobe device. Members are invited to add their own videos showing their turntables.

Victor TT-101 with music

Victor TT-101 stylus drag

SME 30/12

Technics SP10 MK2a

Denon DP-45F
peterayer
Forthcoming is the Saskia and at least one unlikely vintage turntable. Of interest to me is how the turntables behave at the very start when the record is cued. It would be nice to see that in the videos, too.
Many years ago I owned a Goldmund Studio. In an attempt to improve it, I built a larger power supply. I scoped the supply output while playing a record. To my amazement I could see the supply output voltage being modulated by the music I was playing. There is only one conclusion that one can draw from this finding. ... The platter speed itself was being modulated by the music in the form of stylus drag. This was occurring even at quite high frequencies. It is likely that the Goldmund would do well in the time line test, since it's average speed would be close to the mark. But what was happening on a micro level was a completely different story.
I suspect that the occasional blip in the red line on the video is due to the shutter speed of the video camera.
It IS a function of the shutter speed.
In reality...the dash is the same length every time.
Richard, thanks for this GOLDMUND info. I once owned the Studio way back. And I wondered why there wasn´t pitch control for that expensive deck. This explains it quite well, pitch control wasn´t needed at all. The music that is playing defines the speed stability. A very intelligent system, very sophisticated anyway. It would be interesting to see complicated music been played with the Studio and TimeLine test. Firstly, the flimsy suspension must be tamed/eliminated to make a proper test though. And finally, does the music really sound right ?