tonearm for all you fisherman

Where did you get the picture?, posted on April 26, 2010 at 13:14:30
Rob Doorack Audiophile Posts: 5378 Joined: May 26, 2000	Are there more images, perhaps from other angles? Is there an article about it online? Thanks.

Wait a minute..., posted on April 26, 2010 at 09:20:13
teenage diplomat Audiophile Posts: 908 Location: burke, va usa Joined: February 3, 2001	If this is real, please explain the absence of wires leading from the cartridge pins. How is the signal getting anywhere? There appear to be wires leading out of the tonearm base somewhere, but nothing appears to be connected to them at the cartridge end. Can a cart be modded to terminate on the mounting plate somehow?

Bluetooth, posted on April 26, 2010 at 13:41:17
AbeCollins Audiophile Posts: 49482 Location: Maidenhead Grid Square DM79 Joined: June 22, 2001 Contributor Since: February 2, 2002	...bluetooth microchip built into the cartridge. The pins act as antennas. ;-)

RE: Wait a minute..., posted on April 26, 2010 at 10:26:22
caligari Audiophile Posts: 415 Joined: March 20, 2008	. These are all experiments! These arms are trying to achieve tracking force without using counterweights, hence the hanging weights via strings. I guess the concept is try to dispense any arm wand that's attached to the cartridge as if it's tracking the groove like water skiing. I don't know if they will work well or not but at least it's something new. .

RE: tonearm for all you fisherman, posted on April 26, 2010 at 07:30:59

caligari
Audiophile

Posts: 415
Joined: March 20, 2008

Clearly it was inspired by the(47 Labs) RS Labs RS-A1 tonearm. Here's the text on the website via Google Translate:

"Arm must be lifted: For non-standard tonearm design patents are issued (if you know - this is not a quick process. I know this is not hearsay. I have them about 15). History of the tonearm will be presented later. Many designs were not operable, but they "opened their eyes" on the behavior of the needle in the groove, the vibrations, moments of forces, their real value, etc. All this culminated in the latest designs, photos of which, for obvious reasons, is missing. The first arm with a rocking chair and without rear counterweight was made in 1985. Arm must be lifted Japanese company 47 Labs, professing the same arm idea appeared several years later."

Apparently all this was an experiment and we don't what the final product is, as there's no picture. Hmmm..... Now, that's lame!

More images from the Russian website via Google Translate:
http://translate.google.com/translate?hl=en&sl=ru&tl=en&u=http%3A%2F%2Fierihon.com.ua%2Ftonarm

Actual site if you can read Russian:
http://ierihon.com.ua/tonarm

Here are pictures in historical context:
http://translate.googleusercontent.com/translate_c?hl=en&sl=ru&tl=en&u=http://ierihon.com.ua/catalog/tonarmy&rurl=translate.google.com&twu=1&usg=ALkJrhie2nztgBIBomdHE9zWD3hQwGVFAw

Actual site if you can read Russian:
http://ierihon.com.ua/catalog/tonarmy

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More images:

Headshell construction. Pretty clever!

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The whole arm again.

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A modified Rega with string!

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More Rega mod.

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More Rega mod, more refined.

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Very RS Labs like.

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Pivoting headshell a la RS Labs arm.

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More headshell details.

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Bearing construction.

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http://translate.google.com/translate?hl=en&sl=ru&tl=en&u=ht

RE: tonearm for all you fisherman, posted on April 28, 2010 at 09:21:03

caligari
Audiophile

Posts: 415
Joined: March 20, 2008

some vintage ideas

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http://www7a.biglobe.ne.jp/~yosh/strangearms.htm

RE: Gorgeous!, posted on April 26, 2010 at 02:11:55
Marc Almirall Audiophile Posts: 292 Location: San Diego, Ca. Joined: August 3, 2009	I see the red cord that hangs down from the crane, but there is clearly a second line right next to it that does not appear to be string, given the slightly tapered shape. Could this be made of metal or some other, stiffer material? Do you have a link to more info, or a name? Very intriguing.

RE: it's a joke....., posted on April 25, 2010 at 17:27:00
user510	a humorous statement. Craftsmanship appears to be high. Unless my eyes are fooling me, the headshell hangs by cord. That can't be functional as a tonearm. The stylus has no hope of actually tracking a record groove. -Steve

RE: it's a joke....., posted on April 26, 2010 at 00:29:57

213Cobra
Audiophile

Posts: 267
Location: Southern California
Joined: September 1, 2003

Look at the attachment point for the suspension "cord" to the headshell -- it's above the stylus. Just like the pivot in the headshell of the RS-1 tonearm or the RS Labs headshell for standard tonearms. The macro dynamics of tracking the spiral groove are manageable by the design, especially if the horozontal motion pivot bearings are high quality. The headshell/cartridge assembly should carry enough inertia for the microdynamics of extracting information from the groove to be managed too.

Phil

RE: it's a joke....., posted on April 26, 2010 at 00:41:29

user510

I considered that there might be a self-center effect for zenith angle control....somewhat. Where I have my doubts is in the pulling force of the record rotation and the vertical cord holding the headshell. The tendency should be for the headshell to be towed, as all headshells are, but that the cord will allow some fore/aft motion, like a weight on a string,...losing control... and not be able to hold the headshell/stylus within the groove.

If you think this is a serious effort, fine, but I'd like to see a video of it at work.

-Steve

RE: it's a joke....., posted on April 26, 2010 at 01:25:34
213Cobra Audiophile Posts: 267 Location: Southern California Joined: September 1, 2003	>>...but I'd like to see a video of it at work.<< Me too. -Phil

RE: tonearm for all you fisherman, posted on April 25, 2010 at 11:15:18
l1945@sbcglobal.net Audiophile Posts: 1672 Location: midwest Joined: July 5, 2007	Now really! Any serious fisherman would know it has to be made of bamboo!! gary Gary

RE: tonearm for all you fisherman, posted on April 25, 2010 at 11:04:28

213Cobra
Audiophile

Posts: 267
Location: Southern California
Joined: September 1, 2003

This is in some key respects a further extrapolation of ideas introduced by Transcriptors in the Vestigal Tonearm 35 years ago. The Vestigal was an excellent tracker and pulled great sound from even average cartridges. Its two sonic flaws were warp-wow and short effective length. This arm neatly address the warp-wow problem inherent to the Vestigal's short stylus-to-vertical-pivot distance yet it preserves the biaxial difference in effective mass for horizontal and vertical motion.

The headshell mass looks to offer sufficient inertia for the cartridge motor to work against, with VTA and eff mass from stylus perspective adjustable by the sliding weights in the headshell. There are certainly some engineering gambles that look risky to sound, especially the non-rigid connection of the headshell to the rest of the arm structure. But for an investigation of how tonearm design might break from orthodoxy, this is creative, clever, artful and cool.

Phil

great post! /nt, posted on April 25, 2010 at 13:10:03
ecl876 Audiophile Posts: 3473 Location: Bend, Oregon Joined: January 14, 2007 Contributor Since: January 28, 2012	.

RE: great post! /nt, posted on April 25, 2010 at 13:32:04

213Cobra
Audiophile

Posts: 267
Location: Southern California
Joined: September 1, 2003

Thank-you. I forgot to mention that the dangling headshell also incorporates, in a different way, the rotating headshell idea elemental to the RS Labs RS-1 tonearm. When you consider the number of avant-gard tonearm ideas bundled into one artful execution, you must tip your hat to the designer. My guess was he was sober, suspicions here notwithstanding, but if a little vodka limbered up his imagination, perhaps I'll have a couple of shots too.

Phil

"perhaps"???? /nt\, posted on April 25, 2010 at 10:09:13
Opus 104

I found a great dust cover for it(pic) . . ., posted on April 25, 2010 at 10:09:04
hiatt@alaska.net Audiophile Posts: 7773 Joined: December 9, 2000 Contributor Since: November 1, 2005	nt

Is that a picture of FredJ when young?, posted on April 25, 2010 at 11:29:59
tubesforever Manufacturer Posts: 10505 Location: Great Basin Joined: May 7, 2005	Thanks for a fun post! "Help support our school's Music programs"

Vinyl Asylum

tonearm for all you fisherman

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