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TT, 12" Tonearm. Who tried and ended up preferring 12" arm?

TT, 12" Tonearm. Who tried and ended up preferring 12" arm?

I don't mean to start a good, better, best, 'here we go again' tech talk about 9/12, that has been covered, and I have been researching.

I am just wondering: Who tried and ended up preferring a 12" arm?

Aside from all other upgrades you probably did at the same time, which could have improved a 9" arm, what about the 12" arm made you stick with it?

I suppose, 'I tried 12" and went back to 9"' would be good to know also

thanks, Elliott
elliottbnewcombjr
elliottbnewcombjr OP
5,718 posts
 
I wish we could edit posts like other forums

this page says ONLY 101 HAS Double Bi-Directional Servo.

Says both 81 AND 71 DO NOT

http://www.thevintageknob.org/jvc-TT-81.html
elliottbnewcombjr OP
5,718 posts
 
TT101; TT81; TT-71 text from the above link:
    

81/71

Very successful LP drives sold as such in Japan and Germany. In other words : the last two markets really alive with high-fidelity... today !

All tagged with the HMV logo (His Master's Voice) and original components of the Laboratory series, these were either sold as drives or as integrated players, complete with Victor's UA tonearms and CL-P plinths.

The motor of both versions is a high torque 12-pole 24-slot DC-brushless but there is no Double Bi-Directional Servo as in the TT-101 topper.

Precise FG detecting section consists of 180 slots FG yoke with a magnetic disc and an FG circuit board with equivalent 180 printed coils for excellent precision of rotation.
The servo is applied on both positive and negative areas for the TT-81, as in the TT-101, but only on positive for the TT-71.


The TT-81 is a 101 sans Double Bi-Directional Servo and with a simplified pitch control system/display ; the functions and features are nevertheless the same : +/- servo, ±6Hz of 440Hz without switching off quartz-lock switch, soft-touch transport keys and electronic braking with reverse-current circuit.
The strobe is included in the servo loop to avoid AC fluctuations from affecting the actual reading.

The TT-71 is an 81 without +/- servo, no pitch control, an even simplified stroboscope circuit and a solenoid-activated braking pad.


Many integrated players were based on these two drives : QL-10 (TT-81), QL-7 (TT-81) or QL-F6 (TT-81 but with Double Bi-Directional Servo added) among others.

As drives or as integrated versions, the TT-81 and TT-71 sold like hotcakes throughout their long 8-year availability.
uberwaltz's avatar
uberwaltz
13,381 posts
 
I wish we could edit posts like other forums
??
Sure you can edit your post but you do only have a 30 minute window from initial posting to do so.
uberwaltz's avatar
uberwaltz
13,381 posts
 
The TT-81 is a 101 sans Double Bi-Directional Servo and with a simplified pitch control system/display ; the functions and features are nevertheless the same : +/- servo, ±6Hz of 440Hz without switching off quartz-lock switch, soft-touch transport keys and electronic braking with reverse-current circuit.
Not quite correct as it is the TT-71 that has the soft touch transport keys, the TT-81 has a more "normal" button for the transport keys.
totem395
390 posts
 
@elliottbnewcombjr

They TVK are wrong/misleading regarding the TT-71
it is not Bi-directional nor coreless. 

A lot of what has been said is true the TT-81 is a very good TT.

There in my mind still exists some questions as to its design
similarity to the TT-101 although many statements have been made.
I'll leave it at that since I can't definitely prove it.









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