Perimeter Ring Clamps: Yay?, Nay?, Sources??

Correct; I do not get your “sense of humor”. But I gather you followed Halcro’s advice, if that is what he wrote.  As far as I know, he is very happy with his TT101.

pindac

thanks for the reference, but both the Denon’s and JVC Victor's were flying saucer designs, have a look at my TT81

http://www.thevintageknob.org/jvc-TT-81.html

Wayne says one of his ringswill fit, hard to believe, but he should know.

What is your experience with getting it properly centered?

lewm,

I think it was you and a few others that led me to the TT81 and made me aware of the potential trouble with a TT101 or 801. It was then that the 101 became synonymous with Jag V12 in my mind. (I owned and loved 1994 Jag XJS Slant 6, a wonderful car).

I am happy, remember the ’NOS" TT81 I found and thought about buying. reaction was: TT81 very reliable, plentiful, don’t worry.

I just got to page 33 or so, halcro linked his video showing TT81 maintained speed with 3 tonearms creating Stylus drag.

https://www.youtube.com/watch?v=d3WeNPtfLBc

maybe I will finish today, 36 pages, is it a record length?

Absolutely not. Any added mass in no good. It is additional stress on the bearing and motor and there are much better solutions out there. They are also a PITA to use and endanger the stylus in several ways.

If you want to flatten the record and press it into the vinyl get a reflex clamp like the Sota or JA Michell clamps. Many high end manufacturers use this solution instead of vacuum like SME, Kuzma, Sota and Avid. 

mijostyn

On lightweight TT, where instinct says 'not too much weight' I use the small and very light rubber puck that holds reels on R2R tape decks,

same diameter as turntable spindle. press down, they stay put holding the center, self clamping rubber, pull off easy.

I need some friends over to listen for any difference between that and the heavy AT center weight I have been using.