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.
halcro
pb
Totem - where is this TT101 located ?

If I was at liberty to say I surely would have said.

Dear Totem, I was unaware that you already own a TT101. One is enough for most of us.  I bought mine in context with a QL10.  Thus, I got a UA7045 plus the QL10 plinth, which probably has its own unique part number.  Having already commissioned the creation of four different slate or partly slate plinths in my audio life (for Lenco, SP10 Mk2, Mk3, and Denon DP80, respectively), I was loathe to go through that process again.  Plus, I was for 2-3 years uncertain that my TT101 would ever function properly, until I found JP Jones on another website. So, what I did was to re-enforce the QL10 plinth with one-inch thick pieces of aluminum that pretty much cover the available space flanking the hole in the plinth that accommodates the turntable chassis; I bolted them to the wood laminate very firmly, to create a CLD effect.  Then I ditched the stock MDF armboard in favor of a machined piece of aluminum that exactly fits the rectangular space in the plinth; this alu armboard is in turn firmly connected to a second piece of aluminum running below it under the wood plinth proper.  This seems to work quite well to create a very neutral chassis for minimal cost.  If I knew how to post photos here, I would.

I use an SAEC SS300 mat on my TT101.  Mainly because it was sitting around unused.  Tonearm is FR64S with B60 base.  So, perhaps my tinkering days are over.  I put this all together as described. It's sounding great with an Acutex LPM320 cartridge, and I am not inclined to mess around with the package.  Even though another mat might sound a little better.  Even though the mating of the Acutex with the FR64S might seem to be a mismatch.

Is there any feedback here on the UA7045? Is its effective mass really so low as claimed by one source?

lewm

 I must have missed any previous mention of your plinth adventures 
regarding the QL-10/TT-101.

My new plinth for the TT-101 is a modified Artisan Fidelity "style" CLD 
design with sub plates to raise the 2 arm boards done in Rosewood.
I'm really enjoying getting back into woodworking.

Unfortunate that this site is stuck in the dark ages when it comes to some of the common niceties like pictures, messaging etc etc.

No experience with the UA7045, that is the shorter of the series 
the other being UA7--85 or something?







Halcro was/is very clever at posting his photos on one of the on-line websites and then quoting the URL here.  Others have done the same. Probably that is what we should do too.  Or one could possibly put the photos on the System page here on Audiogon; I tried that a few months ago but could not make it work.  I already do have some old photos up there.

Yes, UA7045 is 9-incher.  There is also a 12-inch version with a different numeric designation, maybe 7085, as you suggest.  Someone on the Analog Forum mentioned that the 7045 has a relatively low effective mass, suitable for high compliance cartridges.

Artisan Fidelity make some beautiful stuff, so I imagine your plinth is quite nice. PBNs plinths for Denons are fantastic too.  

Having mentioned seeing some pictures of a boxed TT-101 some time
ago and confirming the leather type mat being a originally supplied item,
member JP has publicly posted pictures of his find.

http://fidelisanalog.com/2016/11/25/barn-find-victor-tt-101/