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Old 11th January 2012, 09:17 PM   #1
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Join Date: Jan 2012
Default Linn Keel

Hi everyone,
I am thinking on un upgrade my lp12 with a new keel. I am thinking on manufacture one.
Question: do anyone know if tech. Data (drawings, specs, etc) is available for a Diy project?
K.Rgds
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Old 12th January 2012, 12:57 AM   #2
andyr is offline andyr  Australia
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Join Date: Nov 2003
Location: Melbourne (Oz, not Florida!)
Quote:
Originally Posted by Inortega View Post
Hi everyone,
I am thinking on un upgrade my lp12 with a new keel. I am thinking on manufacture one.
Question: do anyone know if tech. Data (drawings, specs, etc) is available for a Diy project?
K.Rgds
We have a saying in English (I'm assuming English is not your first language! ) "If pigs could fly ...".

Why do you think Linn would publish their IP just so any DIYer could copy the Keel?

If you really want to make one, you can get the external dimensions from your current pressed-steel subchassis and armboard. The final shape can be different - eg. more ovoid.

If you make sure you cut out sections of an aluminium billet so that:
1. the total weight is similar to (or at least, not too much more than) the pressed-steel subchassis & armboard, and
2. the centre of gravity is at the same point as the pressed-steel subchassis & armboard

... you might get something that approximates a Keel. However, unless it is made of the same aluminium alloy as the Keel, it won't perform exactly the same. Then again, Greenstreet makes a Keel-clone, so why not buy theirs if you can't afford a genuine Keel?

Another alternative - which is the path I have chosen - is AudioFlat's "RubiKon" ... which is rated (by Linn dealers) as 90% of the performance, for 1/2 the price! (In my case, the choice was driven by the fact that they will make one for a Graham 2.2 arm, which the Keel is not available for.)

Regards,

Andy
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Old 1st April 2012, 10:19 AM   #3
diyAudio Member
 
Join Date: Jan 2012
Quote:
Originally Posted by andyr View Post
We have a saying in English (I'm assuming English is not your first language! ) "If pigs could fly ...".

Why do you think Linn would publish their IP just so any DIYer could copy the Keel?

If you really want to make one, you can get the external dimensions from your current pressed-steel subchassis and armboard. The final shape can be different - eg. more ovoid.

If you make sure you cut out sections of an aluminium billet so that:
1. the total weight is similar to (or at least, not too much more than) the pressed-steel subchassis & armboard, and
2. the centre of gravity is at the same point as the pressed-steel subchassis & armboard

... you might get something that approximates a Keel. However, unless it is made of the same aluminium alloy as the Keel, it won't perform exactly the same. Then again, Greenstreet makes a Keel-clone, so why not buy theirs if you can't afford a genuine Keel?

Another alternative - which is the path I have chosen - is AudioFlat's "RubiKon" ... which is rated (by Linn dealers) as 90% of the performance, for 1/2 the price! (In my case, the choice was driven by the fact that they will make one for a Graham 2.2 arm, which the Keel is not available for.)

Regards,

Andy
Andy,

Thanks for info.

K. Rgds
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