GLIDING FOR 90 - mechanical linear tonearms: no airpump, no servo - Page 3 - diyAudio
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Old 11th March 2014, 01:15 AM   #21
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Default Oreson tonearm

Speaking of Clearaudio, here's an arm that resembles their TT2 and TT3. Since it has a logo on it so I think it's a commercial product and yet I can't find any company website for it. I believe it's made in Taiwan as I found it on two Taiwanese audio blogs. It has a DIY feel to it as it's a variation of the Opus3 Cantus design. Notice the white bearings so I would guess they are ceramic bearings.

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Old 11th March 2014, 04:44 AM   #22
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Originally Posted by directdriver View Post
Thanks for the photos and explaining your mods to the Souther. I totally agree with problem #2. I was bewildered by it the first time I saw a Souther that a tonearm would sit on a MOVING part! Glad that you're able to fix the problem. At least Clearaudio addressed the issue. But I'm curious why they never consider using a pivoting base like the one in the Versa Dynamic arm. A tiny magnet can be added to lock it when the arm is swung in play position and I believe it's a bit more user friendly than the raised bridge style assembly. I guess the bridge style arm looks more visually impressive to the buyer.
Hi, thanks for the link. My head is swirling with ideas on how to modify the Souther to achieve this. I do love the arm, but there is a certain lack of rigidity inherent in this design.
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Old 13th March 2014, 12:49 PM   #23
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And another extremely rare, early stereo(binaural) piece if audio history:

A turntable for Cook Binaural records.

Have fun,

Frank
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Old 15th March 2014, 02:08 AM   #24
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Originally Posted by berlinta View Post
And another extremely rare, early stereo(binaural) piece if audio history: A turntable for Cook Binaural records.
Awesome! You always come up with the darnedest thing. I get a kick out of it because it literally is a PARALLEL tracker!

It prompted me to read up on it and found some interesting history about Cook products. There's actually a pivoted version of this binaural tracker, the Livingston tonearm, which is not as rare as the one Frank posted.

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Old 15th March 2014, 08:18 AM   #25
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Default An other approach.

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OK, it`s on air,need some perfection ( IMHO ) but the idea is`nt bad at all.


p.s. this`s not a project of me!!
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Old 15th March 2014, 06:57 PM   #26
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OK, it's on air, need some perfection (IMHO) but the idea is'nt bad at all. p.s. this is not a project of me!!
Oh no, you broke the no airpump rule! Just kidding.

Very nice. I like the simplicity of it. It looks like a variation of the ET (Eminent Technology) arm, except the counterweight is on the side of the cartridge whereas ET and Walker arms all have the counterweight on the opposite side of the rod.

I notice the bearing is blue so I take it is a NewWay airbearing, the same kind used in the Kuzma Airline. It's the fixed bushing and moving rod genre, advantage being the air-hose is not having to dangle along with the moving bushing like the Kuzma or Rockport. It's interesting that it uses TWO bushings and curious if that's for more radial stability. I wonder if having the counterweight on the other end of the rod helps the evenness and distribution of mass. Has the designer thought of or experimented with that?

.
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Old 15th March 2014, 07:36 PM   #27
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Originally Posted by directdriver View Post
Oh no, you broke the no airpump rule! Just kidding.

Very nice. I like the simplicity of it. It looks like a variation of the ET (Eminent Technology) arm, except the counterweight is on the side of the cartridge whereas ET and Walker arms all have the counterweight on the opposite side of the rod.

I notice the bearing is blue so I take it is a NewWay airbearing, the same kind used in the Kuzma Airline. It's the fixed bushing and moving rod genre, advantage being the air-hose is not having to dangle along with the moving bushing like the Kuzma or Rockport. It's interesting that it uses TWO bushings and curious if that's for more radial stability. I wonder if having the counterweight on the other end of the rod helps the evenness and distribution of mass. Has the designer thought of or experimented with that?

.
There is just one bearing in use.
Sorry know nothing more as you can see, I d`nt know the designer.
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Old 15th March 2014, 10:11 PM   #28
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The real granddaddy of linear trackers
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Old 16th March 2014, 09:48 PM   #29
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The real granddaddy of linear trackers
Another good one! The more we go back in time the more I feel like we are reinventing the wheel!


Here's one that's for headphone (stethoscope) listening, the Bell-Tainter Type K. The early days of analog iPod..... or Walkman?

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Old 3rd May 2014, 05:24 AM   #30
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Default Pre-Audio BT-1301

From a Polish manufacturer, Pre-Audio comes this mechanical tangential tonearm. It looks like another Opus3 Cantus inspired tonearm. The whole assembly lifting mechanism looks like it's lifted (pun intended) from the Clearaudio design.

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