[78-L] Tonearm/Cartridge Mismatch - Compliance Remedies?

[Doug Pomeroy]

Hi Nathan,

The video showing my turntable and arm is in one of Michael Feinstein's
Public TV programs (the one titled "On The Air") but it is very informal 
and I was not asked to explain much of anything, definitely nothing about
why I put a coin on the cartridge to increase its weight.

You raise an interesting question about mass and moments of inertia 
(I think), and I have no sophisticated answer for you.  I long ago became 
aware that increasing the tracking pressure by decreasing the weight at 
the pivot end of the arm is not the same as adjusting for the same tracking 
pressure by increasing the mass at the cartridge end, which improves 
tracking noticeably.

Doug Pomeroy
Audio Restoration and Mastering Services
193 Baltic St   
Brooklyn, NY  11201-6173
(718) 855-2650
audiofixer at verizon.net


> Message: 10
> Date: Thu, 12 Dec 2013 10:11:12 -0800
> From: Nathan Coy <nathanpcoy at gmail.com>
> Subject: Re: [78-L] Tonearm/Cartridge Mismatch - Compliance Remedies?
> To: 78-L Mail List <78-l at klickitat.78online.com>
> Message-ID:
> 	<CAKQkP5ACDeUSQZNBH4yH8KMKV=A7w7JRXX2D6RRkNFXeiv7vvQ at mail.gmail.com>
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> 
> I am curious on this in respect to different effects on the tonearm based
> on where the weight is added. It seems like this is a case where the
> placement would make a difference based on the geometric relationships of
> the tonearm. Is that something that the videos speak to? So does
> concentrated mass on a head shell behave different than more mass
> distributed through a tonearm in general? and if so in what ways? Even
> different locations on the head shell could affect the way a fixed weight
> acts on the lever, is there a sweet spot? Are there advantages and
> disadvantages as opposed to just using a tonearm with more mass, a more
> compliant cartridge, heavier cartridge, or wand with more mass? I look
> forward to getting their experienced insights. You mention a video of Mr.
> Winner. I am curious if you could share the location of Mr. Pomeroy's video
> whether in hard copy or online. These seem like they would be great
> resources, so if you could share links references that would be great. That
> is of course with respect to copyright holders (tongue in cheek).
> 
> Thanks, and please post a link to the video when it becomes available,
> 
> Nathan