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Vintage DD turntables. Are we living dangerously?

I have just acquired a 32 year old JVC/Victor TT-101 DD turntable after having its lesser brother, the TT-81 for the last year.
TT-101
This is one of the great DD designs made at a time when the giant Japanese electronics companies like Technics, Denon, JVC/Victor and Pioneer could pour millions of dollars into 'flagship' models to 'enhance' their lower range models which often sold in the millions.
Because of their complexity however.......if they malfunction.....parts are 'unobtanium'....and they often cannot be repaired.
128x128halcro
halcro's avatar
halcro OP
2,664 posts
 
Sorry Dover,
I did mis-read your Post.
dover
2,280 posts
 
Halcro, you're a gentleman. Thanks.
richardkrebs
422 posts
 
Now that Dover and Halcro seem to have made up. Can we all agree that the spikes in the sine waves from the raw data are actually showing speed changes, W&F?
Secondly, as a family, TTs with tight speed correction tend to show greater aggressiveness in said speed changes?
dover
2,280 posts
 
And the winner is .....

Belt drive Onedof turntable.

Richard - one final correction.
Halcro keeps posting the VPI Direct Drive raw graph.
10-16-15: Halcro
Here is the real time analogue print-out of the actual sinewave produced by the VPI Direct whilst tracking the 3150 Hz Test Tone.
Unfortunately the raw graph Halcro posts is in fact the Onedof turntable.

Here is the link to the original graphs -
VPI Direct & Onedof raw data graphs
Figure 2 is the VPI Direct raw data graph.
Figure 3 is the Onedof raw data graph.

Interesting to note that the smoothest raw data graph by a substantial margin is the Onedof TT with stretchy rubber belt drive and high mass platter.

Fremers testing and listening notes that the Onedof and Caliburn turntables have similar absolute results, but different shaped graphs They sound substantially different in character, perhaps the raw data graphs go partly to explain it. This of course is conjecture only.
fleib
1,124 posts
 
*since the availability of the Feikert Speed App I have regularly stated that the Data downloaded on its 'Chart Info' was imprecise and non-scientific as it was not possible to duplicate the results from test to test.*

Why do we give credence to this in a magazine? Stereophile is Amateur Hour, unprofessional and lacking expertise. Too much trouble for them to conduct a proper test?
Read the specs page on the VPI Direct and all it has is the price.
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