Levitating Turntable

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1200y3
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Re: Levitating Turntable

Post by 1200y3 » 07 Aug 2017 07:59

Trio KD1033 makes a good point. There is an interview of Edgar Villchur on youtube explaining his philosophy about the tone arm and spindle being coupled.

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Re: Levitating Turntable

Post by P700DEE » 07 Aug 2017 10:47

I see from their site they are still at pre-ordering :lol:
When will this scheme collapse?

davidsrsb
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Re: Levitating Turntable

Post by davidsrsb » 07 Aug 2017 12:25

Trio KD1033 wrote:With a conventional deck the two are locked together

Andy
Exactly. Any relative movement, just a mm or two, is going to wreck your cantilever. Add enormous magnetic fields near the platter and I am very suspicious. I can buy the maglift motor and construct a demo as a piece of stage magic, but a practical piece of HiFi is another story

fscl
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Re: Levitating Turntable

Post by fscl » 08 Aug 2017 17:05

The Early Bird and Black backers are "beginning" to get their reward tables........ :-k :-k :-k

Anyone here ? Initial reviews.... ? Bueller ?

Fred

sl1411
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Re: Levitating Turntable

Post by sl1411 » 08 Aug 2017 21:56

Perhaps, if they use this in movie, it will have the same effect as Mickey Rourke sliding a CD in a slit in the eighties(Eight1/2 weeks). It helped the PVC disc to its grave and gave the shiny Polycarbonate the spotlights.
BTW There are a bunch of movies out lately that somehow show Recordplayers {Mechanic, Once upon a time in Venice....)

Also, Magnetic Levitation exits. Trains and huge gas compressors use the principle - but it takes more tweeking than you can throw a stick at!

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sl1411

davidsrsb
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Re: Levitating Turntable

Post by davidsrsb » 09 Aug 2017 03:54

sl1411 wrote:Also, Magnetic Levitation exits. Trains and huge gas compressors use the principle - but it takes more tweeking than you can throw a stick at!

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sl1411
It does, in applications where the positioning of the train etc is not critical. If the arm had been on the lift platform, with an ADC and optical link to the base (to avoid a cable) I could see the idea as workable

ammarmariti
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Re: Levitating Turntable

Post by ammarmariti » 09 Aug 2017 05:00



Look at how wobbly the thing is.
And its not even a video of it working, its a demonstration video.

H. callahan
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Re: Levitating Turntable

Post by H. callahan » 09 Aug 2017 05:05

BTW There are a bunch of movies out lately that somehow show Recordplayers {Mechanic, Once upon a time in Venice....)
The latest Mission-Impossible-movie also had a tt, i think it was a technics... they even were in a record store for about 2 minutes (!).

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Re: Levitating Turntable

Post by Spinner45 » 09 Aug 2017 05:58

ammarmariti wrote:

Look at how wobbly the thing is.
And its not even a video of it working, its a demonstration video.
Sure is wobbly!
While it's a cute levitation object, designed to "impress", it's certainly not something I'd want to play my records on, nor own.

davidsrsb
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Re: Levitating Turntable

Post by davidsrsb » 09 Aug 2017 12:49

Spinner45 wrote:Sure is wobbly!
While it's a cute levitation object, designed to "impress", it's certainly not something I'd want to play my records on, nor own.
No damping at all by the look of it.
Now place that turntable on a rack on a sprung wooden floor, walk around and watch your record getting mangled.

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Re: Levitating Turntable

Post by BMRR » 09 Aug 2017 16:17

It sort of reminds me of how bouncy the AR XA is, but at least in the case of the AR XA the tonearm and the platter are coupled and aren't wobbling in separate directions.

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Re: Levitating Turntable

Post by sl1411 » 09 Aug 2017 20:05

Hi, To further my remark about TTs in movies, here are the stills.
I coudn't bother with Roarke and his chick magnet cd player!

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sl1411
Attachments
once upon a time in venice.JPG
jeez, even bruce willis can afford a 1200 in once upon a time in venice!
(50.23 KiB) Downloaded 236 times
mission impossible 5.JPG
tom cruise gets his mission impossible from a 1200 with laser projector
(86.91 KiB) Downloaded 246 times
mechanic.JPG
jason statham's set up in the mechanic
(76.18000000000001 KiB) Downloaded 235 times

sl1411
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Re: Levitating Turntable

Post by sl1411 » 09 Aug 2017 20:07

H. callahan,

I forgot to say Danke in my picture post: Thanks for the MI5 reminder!

sl1411

H. callahan
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Re: Levitating Turntable

Post by H. callahan » 10 Aug 2017 06:34

@sl1411:

You´re welcome! I was impressed how much credit they gave tt and records in MI5, because the vinyl-hype wasn´t that big when they did MI5. I mean they really used the tt, well more or less, while in other movies the tts are somewhere in the background not doing anything.


About the levitating tt i´m somewhat impressed they made it work, but from a technical point of view it´s horrible. The plattern not only does wobble, but it wobbles for a very long time, which means it wobbles very easily. An air draft might be sufficient to make it wobble and of course vibrations occuring during playback will.
Yet i´m interested how it sounds.

davidsrsb
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Re: Levitating Turntable

Post by davidsrsb » 11 Aug 2017 09:37

Real world MagLev has stability problems. This rather mathematical paper discusses some findings when it was being tested for trains etc
http://www.dtic.mil/dtic/tr/fulltext/u2/a259178.pdf

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