What turntables do you use? Pictures would be nice as well :-)

[carolus]

In home brew, TT & TA Air bearing 16" ... for the musical fun.



AIR BEARING TURNTABLE 16”
Concept/technical specifications:
Type: air bearing spinning platter
Nozzels: multiple air nozzels (home made)
Dynamic mass: 12kg
Turntable platter: C45 / Dia: 325mmx14,4mm
Motor management: “à la Lenco”, with micro fine tuning Turntable speed (fix): 33,3 RPM
Turntable: 16” Glasplatter 450mmx8mm
Stroboscope : 16” (à la EMT … custom home made )
Center: three points centering (near absolute center)
Air compressor: oil free air compressor
Air pressure turntable: 0,7bar (minimumminimorum)
Total weight: 45kg (appr)
Free run from 33,3 rpm to 0 rpm: total time 11minutes 45 seconds

AIR BEARING LINEAR TRACKING TONE ARM 16”
Concept/technical specifications (home made):
Type: air bearing linear tracker (à la “Terminator”). Effective lenght: 450mm (16”)
Tracking error: 0°
Pressure tone arm air pressure: 0,4bar (appr).

And my daily TT (&TA):
Technics SL220 with (home brew) air bearing TA (à la Terminator & Lyra) ...

.... It's music .... i like it ....



Karel

 

[ddk]

In home brew, TT & TA Air bearing 16" ... for the musical fun.

View attachment 37824

AIR BEARING TURNTABLE 16”
Concept/technical specifications:
Type: air bearing spinning platter
Nozzels: multiple air nozzels (home made)
Dynamic mass: 12kg
Turntable platter: C45 / Dia: 325mmx14,4mm
Motor management: “à la Lenco”, with micro fine tuning Turntable speed (fix): 33,3 RPM
Turntable: 16” Glasplatter 450mmx8mm
Stroboscope : 16” (à la EMT … custom home made )
Center: three points centering (near absolute center)
Air compressor: oil free air compressor
Air pressure turntable: 0,7bar (minimumminimorum)
Total weight: 45kg (appr)
Free run from 33,3 rpm to 0 rpm: total time 11minutes 45 seconds

AIR BEARING LINEAR TRACKING TONE ARM 16”
Concept/technical specifications (home made):
Type: air bearing linear tracker (à la “Terminator”). Effective lenght: 450mm (16”)
Tracking error: 0°
Pressure tone arm air pressure: 0,4bar (appr).

And my daily TT (&TA):
Technics SL220 with (home brew) air bearing TA (à la Terminator & Lyra) ...

.... It's music .... i like it ....



Karel

Hi Karel,
Is the airbearing something you made or purchased? You mentioned motor management a la Lenco, are you using a similar idler wheel with an airbearing?

david

 

[es347]

..Thorens TD 160 Super fron Vinyl Nirvana...custom plinth...RB301 with upgraded counterweight and Goldring 1042

 

[carolus]

...something you made or purchased?
...motor management a la Lenco, are you using a similar idler wheel with an airbearing?
david

Hi David.
FYI
Yes, all home-hand-made; idea, concept plan, protos, one heavy TT-unit .... crazy-Méga-cool-realization (for the grandchildren).
Motor management: yes, same Lenco-concept .... but heavier & longer. Possible with Lenco-motor-rim-drive

The basic idea was "do something different with a (old) Lenco-TT" ....

Sorry, I think that we are "out of topic-trhead" ...

Karel

Heavy Lenco-motor-magement:


Lenco-motor-rim-drive. A simple musical-fun-test ...

 

[analogsa]

?egacool for the grownups too

If anything worries me, it is the complete apparent lack of suspension/isolation. Any plans for a dedicated isolating stand?

 

[loki1957]

 

[gian60]

I had Symphonic line TT red 20 years ago
I remember a very great sound with this TT

 

[ddk]

Very cool, thanks for sharing Karel!
david

Hi David.
FYI
Yes, all home-hand-made; idea, concept plan, protos, one heavy TT-unit .... crazy-Méga-cool-realization (for the grandchildren).
Motor management: yes, same Lenco-concept .... but heavier & longer. Possible with Lenco-motor-rim-drive

The basic idea was "do something different with a (old) Lenco-TT" ....

Sorry, I think that we are "out of topic-trhead" ...

Karel

Heavy Lenco-motor-magement:
View attachment 37826

Lenco-motor-rim-drive. A simple musical-fun-test ...
View attachment 37827

 

[carolus]

....worries me, it is the complete apparent lack of suspension/isolation.
....Any plans for a dedicated isolating stand?

Sorry for my late respons.

Hi.
Between the table-base & the three air bearing points supports (funny leek plugs) & motor unit points support I used a metal plate with cork …. a "minute" (isolated) fixing/support ….
The TT & center axe is (quasi) completely free in the air (tol. in the nano-meter).
My experience in this case; In a normal (domestic) environment (good stable parquet floor) its acceptable (efficient) ….
Of course, other stand-concepts are better …. (but this was not my goal).
In fine, to day, no idea or plans for a dedicated stand ....
I am (very) happy with a High standard ....

 

[loki1957]

I had Symphonic line TT red 20 years ago
I remember a very great sound with this TT

Curious what you replaced it with.

 

[jeff1225]

I'll post my pride and joy....Acoustic Signature Ascona with matching stand. 400lbs of metal.

 

[BruceD]

Stiff Neck--

 

[Mike Lavigne]

beautiful tt, like the picture/painting/print behind too.

 

[jeff1225]

Stiff Neck--

Thanks Bruce. I always have issues with this forum and my pictures!

 

[jackelsson]

Eventually got around to install the faceplate for the pressure hoses of the air bearing. Feels like finally tidying up...

TW-Acustic Black Night on DIY air suspension platform.
Origin Live Enterprise C 12" w/ Ortofon MC Anna; TW-Acustic 10.5 w/ Benz LP-S MR; SME 312s w/ vdH Colibri Signature Stradivarius (.9 mV); TW-Acustic 10.5 w/ Lyra Titan i

 

[rockitman]

^^^^^Great looking setup and photo.

 

[daytona600]

Vertere

 

[PeterA]

Eventually got around to install the faceplate for the pressure hoses of the air bearing. Feels like finally tidying up...



TW-Acustic Black Night on DIY air suspension platform.
Origin Live Enterprise C 12" w/ Ortofon MC Anna; TW-Acustic 10.5 w/ Benz LP-S MR; SME 312s w/ vdH Colibri Signature Stradivarius (.9 mV); TW-Acustic 10.5 w/ Lyra Titan i

Superb lighting and focus on your photograph, Jackelsson. Do you have two Pass XP25s to support all four arms or do you switch phono cables? Also, it looks as though your DIY air bearing platform is located so that the center of mass is equidistant from each of the four air bladders. How did you calculate that? Great looking DIY project. Do you need to adjust the air pressure very frequently?

 

[jackelsson]

Thanks Christian and Peter.

Superb lighting and focus on your photograph, Jackelsson. Do you have two Pass XP25s to support all four arms or do you switch phono cables? Also, it looks as though your DIY air bearing platform is located so that the center of mass is equidistant from each of the four air bladders. How did you calculate that? Great looking DIY project. Do you need to adjust the air pressure very frequently?

Yes, it's two XP-25, so it's just flicking a switch and not fiddeling around with phono cables.

Finding the center of mass on the air suspension platform is actually not too difficult: figure out roughly where the pneumatic springs need to sit, then bring them to the exact same pressure, then move the turntable around until the platform is level, done.

Air needs to be adjusted ca. every two months, but just ever so slightly.

 

[tkcha]

My Lovely AMG Viella 12