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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
 
Dover,
All you and Richardkrebs do is disparage every scientific test method we have available for turntables without ever offering an alternative.
If you have nothing to offer to help analyse a turntable's performance in an objective manner, perhaps you should both just ignore these discussions...
halcro's avatar
halcro OP
2,664 posts
 
So show me all the speed changes in this raw trace frequency chart Richardkrebs?
richardkrebs
422 posts
 
Halcro.

The TT-101 is a machine, a thing, nothing more. It, like all machines, is far from perfection. My objective comments, made as a result of properly interrogating all of the Feikert test data you provided, are in no way a reflection on its owner.
The same cannot be said for your attempt to censor me by suggesting I "ignore these discussions" because I posted facts that you find uncomfortable.

fleib
1,124 posts
 
Dover,
"Speed is never absolute. It is always measured from a point of reference. The planet is rotating, the measured speed on your platter is relative to the rotation of the planet - it cannot be absolute."

We're talking rotational speed not land/air/sea speed. It's as absolute as the timing of a minute.
Regards,
fleib
1,124 posts
 
RK,
"Look at the raw trace for the WE8000.
Start at the first lower min freq, just above 3130 hz. Other than the max at around 3164hz, count every sharp change in direction until immediately before the next min of around 3130 hz again.
I count 14. The platter changes speed 14 times during that single revolution."

A tone is a vibration, a sine wave, not a straight line on a scope. You have to compare to a "pure" tone generated for 3150Hz.
Regards,
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