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Victor TT 101 vs TT 81

I am aware of some of the differences regarding the motors of these two units, but I was wondering if anyone had insights as to the differences in sound (if any) and the differences in reliability (I'm guessing the 81 being simpler might be more reliable, however, it seems to have the better motor).  Any info will be appreciated.
rgs
halcro's avatar
halcro
2,664 posts
 
Hi rgs,

In the Vintage DD Thread, there are some Posts by HiHo
https://forum.audiogon.com/discussions/vintage-dd-turntables-are-we-living-dangerously?page=12
who is very knowledgeable about all the Victor models made only for the Japanese market, and we discussed the QL66F among others.

You started this Thread asking about the ’sonic’ differences between the TT-81 and TT-101.
To me, there appears to be none.
If, as it appears now....you are wedded to a Victor coreless motor.....that’s another kettle of fish altogether and I would strongly recommend that you wait for a good TT-101 to come along.
Good luck...👍😎
rgs OP
12 posts
 
Thanks Halcro.  You are right, initially I thought I would go with the TT 81 if it was the same, but I think in the end my bias towards coreless will reign.  TT 101 it is.
hwsworkshop
36 posts
 

Dear Lewm,

I have a guy but we are so busy making, upgrading, and repairing our stuff (400,000 customers) the days just run away before we can do anything but what we need done.

I have another possibility that I will check out this week, he is very good on servos and power supplies.

HW

best-groove's avatar
best-groove
831 posts
 
I used the Classic Direct base

I do not know what it is? A company, a product or what?

Do you have a link for me?


I have thoughts of taking it back to Bill, now that the problem is sure to occur in his hands. He is a superb guy in all ways. However, I thought perhaps you may have a guy who is steeped in servo technology who might provide some insight.

did you solve the turntable problem with Bill Thallman?
lewm
12,474 posts
 
After this thread died a natural death, I found JP Jones via this forum and via DIYAudio, as well.  JP gained fame among DD-philes by deconstructing the single chip that makes Technics SP turntables run properly and without which they don't run at all.  The chip is no longer available from any source, so JP is a life-saver of sorts.  JP's chip is constructed from discrete parts on a small PCB that is no larger than the original chip when it is mounted on its PCB.  What's more, JP's chip is a tad more accurate than the original in controlling speed.  Anyway, I contacted JP, and he fixed my TT101, nearly two years ago.  It's been running fine ever since.  I was not wrong in my hypothesis, sort of.  JP found a hairline crack in one of the PCBs in the TT101.  A line of solder covers the crack such that when the board was flexed it caused a short circuit that was nearly impossible to see or detect, unless you knew where to look, which JP did.  JP can be found on-line at Fidelis Analog, but alas he is apparently very busy these days.  Still, you could contact him and ask.
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