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
Hello Tony, Those were my thoughts also. I'm using an iPhone and I don't know what the fps rate is. I'll look into it. However, I returned the TimeLine to Albert Porter on Tuesday because I had recorded the various turntables around me. I don't really notice this effect when watching live. They just look like red laser dashes blinking along.

I'm sure in a more controlled setting with an excellent microphone and professional camera, one could perhaps even hear slight variations in speed on certain recordings over the video.

I'm just hoping other upload videos to add to this database.
Perhaps you should buy a tonearm with hydraulic action lifting and lowering...as all my six arms have?
No human can lower the cartridge more gently that these.... :-)

Halcro,
Perhaps I wasn't clear in my post. I actually do have a tonearm with a dampened lowering mechanism (VPI JMW-Classic), but the cartridge still has a distance to travel once it's released. If you simply flip the lever (as I have seen some audiophiles do it regularly), the stylus will still hit the record surface with some force, albeit weaker, IMO too hard to ignore and repeat with every flip of the record. I release the mechanism very close to the record to minimize the strain on the suspension. I thought every audiophile adhered to this practice with lowering mechanisms.
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.