[78-L] stylus measurement

[Don Chichester]

Thanks, Bill!  That answers my question perfectly.

Don
 
> From: klinger at modex.com
> To: 78-l at 78online.com
> Date: Sat, 16 Jan 2010 20:46:31 -0500
> Subject: Re: [78-L] stylus measurement
> 
> 
> Don,
> 
> The numerical values you asked about refer to the stylus tip _radius_.
> 
> Styli having a tip rounded to form a portion of a sphere have been termed
> "spherical" styli, ever since Thomas Edison adopted the shape, in 1889. The
> term can be misleading because, in practice, the tip is normally just a
> _hemisphere_, at one end of a cylindrical or conical rod.
> 
> Cartridge manufacturers and stylus makers cite the radius of that hemisphere
> when describing their "spherical"-tip products.
> 
> Regards,
> Bill
> ___________________
> Bill Klinger
> 13532 Bass Lake Road
> Chardon, OH 44024
> 
> (440) 564-9340
> 
> _______________________________________________________________
> 
> -----Original Message-----
> From: 78-l-bounces at klickitat.78online.com
> [mailto:78-l-bounces at klickitat.78online.com] On Behalf Of Don Chichester
> Sent: Saturday, January 16, 2010 4:14 PM
> To: 78-l at klickitat.78online.com
> Subject: Re: [78-L] stylus measurement
> 
> 
> 
> When we say a stylus has a 3 mil tip (.003 inches) what are we talking
> about? The _diameter_ of the 'ball' at the tip, or the _radius_ of that
> 'ball? (By 'ball" I mean the rounded end? Always has puzzled me.
> 
> 
> 
> Don (not too sharp) Chichester
> 
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> 
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