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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
fleib
1,124 posts
 
Calculating force to slow a 22kg platter is looking at it backwards. Stylus drag is nothing but friction. It's applying the brake to a rotor (platter) and the feeble motor slows. Instead of a heavy platter requiring more friction to slow it, it requires less to slow the under torqued motor.

I doubt if this is enough friction to tilt a 25 lb. pod, even 8 microns which isn't a whole lot. Time to move on?
richardkrebs
422 posts
 
Fleib.

The TT in question has a very powerful motor, capable of rapidly accelerating the platter.

I agree, 8 microns is tiny and this subject is tired.

cheers.
halcro's avatar
halcro OP
2,664 posts
 
You accept without question that a stylus can slow a 22kg platter.
Untrue.....I never accepted this fact until proven to me by the Timeline.
And I still find it hard to believe......
Your calculations are frankly nonsense IMHO.
Simply provide the evidence....
Even the Greeks 2500 years ago could easily set up an experiment using tensioned string to prove your theory.
Stop waffling and simply prove what you say using the dozens of methods available to real scientists today.
If you can't or won't, it would seem reasonable to keep your imagined beliefs a well protected secret...🙈
richardkrebs
422 posts
 
Halcro.

Lighten up, this is just a friendly discussion.

Cheers.
fleib
1,124 posts
 
Richardkrebs,
A powerful motor doesn't validate your conclusion. It does bring the platter back to speed quickly. You assume a 100% torque conversion between motor and platter. All that happened was the transmission (string) slipped for a moment.

Once again, stylus drag is a bit of friction not some powerful force. That is, unless you're talking about Super Drag which can bend steel and leap tall buildings in a single bound.
BTW are you related to Maynard G ?

Regards,
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