[Wayner]

wayner, this link, #4?
http://www.mcmaster.com/#adjustable-feet/=doapqm

Yes! But I think I like #3 cause you can get an open ended wrench on it!

Wayner 

[Wayner]

what about this for the platform?
http://www.adonacorporation.com/multi-element.html

Very nice. The table would look spectacular, but slightly industrial (which is what I like, anyway)!

Wayner 

[Sonny]

There's a place in Berkeley, CA who will plate the plinth for:

"$150.00  EN .001 / No Masking
We will need to run a piece of all thread with nuts and washers securing
it through the center for racking purposes. He will end up with no
plating around the hole about the size of a washer on each end."

What do you think guys?  Still leaves some areas un-plated, which may cause rust in the plated area over time...is it better just to keep waxing/polishing? Say annually or when needed?

[Wayner]

Plate it! The un-plated area can be painted (not seen) and unless your place is totally damp, rust will not visit. Berndt did a fantastic job and you are obviously happy (by getting rid of the old plinth) and it's the final solution to the project. You both should be very proud of what you have made and it needs to get finished.

Wayner 

[bacobits1]

Berndt, I just came upon this. Absolutely beautiful!
I wish you were my neighbor.

Spectacular job.

D

[mgalusha]

Just saw this as well, magnificent. Truly special and I'm sure it sounds appropriately solid.

[TheChairGuy]

Dang - I don't imagine it gets MUCH better.

Spot on speed provided by rock solid rim drive, the mass of 135lbs rejecting feedback, low friction bearings in platter and arm (well, kinda' non-existent bearing in a unipivot VPI) and a 10.5" arm (with fluid damping if needed) that improves tracking ~10% over 9" arms simply by physics alone 

Seriously, the nuances from this point to the ABSOLUTE best you can buy are slim indeed.

You're in with the serious heavies now, Tuan

[Sonny]

Thank John...listening to the rig right now, albeit low volume due to sleeping daughter, it sounds quite good!  I just checked the mounting distance, 258mm, to make sure that the cartridge and everything is set up right!  still breaking it in, though there's not really any breaking in since the platter and bearing are the ones I used on the TNT.  Anyways, have the TNT plinth for sale as well as others, if anyone is interested!  Please see this link!
http://www.audiocircle.com/index.php?topic=97548.msg979518#msg979518

[TheChairGuy]

It's just sick, brudda' T

Top notch newborn deck AND daughter (that sleeps for goodness sakes - not like my hyperactive little smurf!)...it gets not much better than that 

[GBB]

Bill and Tuan,
All I can say is WOW!!!  Congratulations.
Can't wait to see and hear these.  Will they be making their way to the Burning Amp Fest in the fall?  Or do you have enough spare time with the new family member to put up with visitors?  I'd love to see these some time.

It will be a fair amount of work to get the most out of this turntable but you've got the foundation for a world class system.  Of course the journey is as much fun as the destination.

Happy listening and tweaking - or is it the other way around?

---Gary

[ecir38]

Sonny, before plating or other have you considered counter sinking the bearing housing to decrease the gap from the platter to plinth. I don't recall who maybe TTweights at RMAF where I heard getting that gap smaller made a big differance in tuning the table.

Brad

[Wayner]

Thank John...listening to the rig right now, albeit low volume due to sleeping daughter, it sounds quite good!  I just checked the mounting distance, 258mm, to make sure that the cartridge and everything is set up right!  still breaking it in, though there's not really any breaking in since the platter and bearing are the ones I used on the TNT.  Anyways, have the TNT plinth for sale as well as others, if anyone is interested!  Please see this link!
http://www.audiocircle.com/index.php?topic=97548.msg979518#msg979518

I'm assuming that 258mm is from spindle to tonearm pivot? So if you wanted to put your cartridge in a Lofgren B, then you would use 15.422mm overhang, using the null points of 70.285 and 116.604.

I understand why you took the tonearm and separated it from the plinth. However, that now makes the location of the arm pivot in relation to the spindle a bit ambiguous. I wonder if bill can make you a spacer block so that  you can always set the arm's distance at what you want? From the top view looking down, it doesn't matter where the arm is (angularly), but you and I both know that maintaining pivot to spindle distance accuracy is very assuring when doing cartridge alignment.

(just a suggestion) Project still great!!!!

Wayner

[Sonny]

Sonny, before plating or other have you considered counter sinking the bearing housing to decrease the gap from the platter to plinth. I don't recall who maybe TTweights at RMAF where I heard getting that gap smaller made a big differance in tuning the table.

Brad

Brad, that was the original plan and we may do that just yet...I was afraid of not having enough room to get my fingers under the platter to put on or remove...but I think I can manage if it was countersinked...

So, Bill, do you think we can countersink it?

[Sonny]

I'm assuming that 258mm is from spindle to tonearm pivot? So if you wanted to put your cartridge in a Lofgren B, then you would use 15.422mm overhang, using the null points of 70.285 and 116.604.

I understand why you took the tonearm and separated it from the plinth. However, that now makes the location of the arm pivot in relation to the spindle a bit ambiguous. I wonder if bill can make you a spacer block so that  you can always set the arm's distance at what you want? From the top view looking down, it doesn't matter where the arm is (angularly), but you and I both know that maintaining pivot to spindle distance accuracy is very assuring when doing cartridge alignment.

(just a suggestion) Project still great!!!!

Wayner

Wayner, right that is 258mm from spindle to pivot.  It's nice to move the armpod any way you want to get the 258mm...then measure then you're done!  I was thinking about make a custom platform with a counterbore
(about 1/8") for the armpod and plinth....they would be basically just a touch bigger than the pieces so they would fit in perfectly...but I don't have the tools to do such a thing, just a router is needed, right? 

Regarding Lofgren B, I like baewald better as it gives me better tracking through the record whereas Lofgren B gives me better inner and outer record tracking...

Tuan

[TheChairGuy]

Tuan,

Do you really hear a difference with the 10.5" arm with either of the two tracing technologies: Lofgren B or Baerwald?

Hell, I'm with Well Tempered on this...once you get to 10.5" arms...rigidity throughout the length of the arm is FAR more important than overhang or tracking technique.  With a 10.5" or longer arm the argument for one type or another is nearly (perhaps not entirely) moot.

With 9" arms, one can have a preference that matters as there is so much wanting in tracing distortion by the 9" arm itself.

John

[Sonny]

Tuan,

Do you really hear a difference with the 10.5" arm with either of the two tracing technologies: Lofgren B or Baerwald?

Hell, I'm with Well Tempered on this...once you get to 10.5" arms...rigidity throughout the length of the arm is FAR more important than overhang or tracking technique.  With a 10.5" or longer arm the argument for one type or another is nearly (perhaps not entirely) moot.

With 9" arms, one can have a preference that matters as there is so much wanting in tracing distortion by the 9" arm itself.

John

John, surprisingly, yes, I heard a difference when it was on the TNT plinth...especially in the inner grooves...there's just less "spitty" and "sibilance" with the Baewald vs the Lofgren...
Also, have not used the VPI jig on this for awhile!
Tuan

[ecir38]

I was thinking about make a custom platform with a counterbore (about 1/8") for the armpod and plinth....they would be basically just a touch bigger than the pieces so they would fit in perfectly...but I don't have the tools to do such a thing, just a router is needed, right? 
Tuan

Drilling and tapping two holes at around 15 to 30 degrees apart, I know easier said than done with stainless, in the side of the pod to accept something like in this link

http://www.parts-express.com/pe/showdetl.cfm?Partnumber=240-725

would allow an adjustable distance to be set that once set could be be easily moved and put back in the proper place. Would also allow you to monitor if the pod would move over time.

Redpoint tuntables use this on their pods, there website doesn't have any pics to illustrate.

Brad

[Sonny]

thanks Brad, but right now, the armpod is only about 1/8" from the plinth...so there would be no room for the spikes between the two pieces...also, unless I get a quake larger than 5.9 ( ) the 30lbs pod and 130lbs plinth should not be going anywhere!

[twitch54]

...especially in the inner grooves...there's just less "spitty" and "sibilance" with the Baewald vs the Lofgren...
Tuan

Interesting notes Tuan.........glad to hear that you are more than pleased, as Wayner said 'industrial eye candy' for sure !!

[Wayner]

Since the Lofgren B actually puts the stylus out farther then the Baerwald, I suspect the actual differences may be in the anti-skating.

Wayner