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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
hiho
451 posts
 

Instruction on setting up the RS-1A tonearm using underhang scheme. I believe the arm uses the tangential point (or reference point) right in the middle of the platter which is 3 inches away from the spindle about 76mm radius.

"Structure & Features of RS-A1 Tonearm" by Shirou Horii

You can use that as a starting point to experiment with the SAEC or other available arms.

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doron
43 posts
 
Hello Halcro,

Based on your experience, which JVC motor has morer torque,
The TT-71/81 or the coreless TT-101?

Thanks!

Doron
halcro's avatar
halcro OP
2,664 posts
 
Hi Doron,
According to Vintage Knob...the TT-81 has 1.3Kg/Cm starting torque against the 1.8Kg/Cm for the TT-101.
I don't know how that relates to perceived performance as both decks are consistently immune to the the effects of 'stylus drag' even under three cartridges running simultaneously...😍
I also can't hear a difference in performance between the two decks in my system.....
Regards
Ag insider logo xs@2x
banquo363
371 posts
 
fwiw, the manual for the tt 101 states 1.2 kg.cm as the starting torque.

Just for giggles, I looked up the starting torque for Lew's sp10 mk3: a whopping 16 kg.cm. But the platter for that weighs as much as the entire tt 101. So both tables reach operating speed in under 3/4 sec.
totem395
390 posts
 
Well it seems both figures are as stated.

My original Japanese copy TT-101 1.2kg and the QL-10/TT-101 on TVK 1.8kg do show conflicting figures. Never noticed the
discrepancy before.
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