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 Re: Standard marking for altered mouthpiece
Author: Caroline Smale 
Date:   2014-05-19 01:40

Stan, out of interest I just measured a VD 2V mouthpiece I bought new about 40 years ago and used for a few years but is essentially still like new.

The 2V is not too dissimilar from the 2RV/5RV model.

Using a 0.0015" guage gave a length of 16.8 mm
Using a (homemade) guage of 0.0005" gave a reading of 18.1 mm

So a 0.001" thickness difference increased measured length by 1.3 mm
Since curve here is section of an elipse it is reasonable to judge that the absolute zero point could be at least 0.7 - 1.0mm further along and this would give total length of approx 18.8 - 19.1 mm under old system.

So as rule of thumb old measure is about 2mm greater than the new system.

ps.
just found a chart from about 1980 (published in "Crescendo International") that quotes length of VD lays and claims these are VDs own claimed measurements and also notes the author was unable to replicate the actual measurements with feelers so wasn't sure how VD arrived at them.

The 5RV is listed as 0.748" which is exactly 19.0 mm.



Post Edited (2014-05-19 01:58)
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 Topics Author  Date
 Standard marking for altered mouthpiece  new
fskelley 2014-03-16 23:14 
 Re: Standard marking for altered mouthpiece  new
donald 2014-03-16 23:52 
 Re: Standard marking for altered mouthpiece  new
tictactux 2014-03-17 01:17 
 Re: Standard marking for altered mouthpiece  new
Wes 2014-03-17 01:20 
 Re: Standard marking for altered mouthpiece  new
ThatPerfectReed 2014-03-17 01:24 
 Re: Standard marking for altered mouthpiece  new
seabreeze 2014-03-16 21:59 
 Re: Standard marking for altered mouthpiece  new
kdk 2014-03-17 03:08 
 Re: Standard marking for altered mouthpiece  new
fskelley 2014-03-17 03:35 
 Re: Standard marking for altered mouthpiece  new
Arnoldstang 2014-03-17 18:34 
 Re: Standard marking for altered mouthpiece  new
fskelley 2014-03-17 19:16 
 Re: Standard marking for altered mouthpiece  new
kdk 2014-03-17 16:23 
 Re: Standard marking for altered mouthpiece  new
fskelley 2014-05-17 08:01 
 Re: Standard marking for altered mouthpiece  new
fskelley 2014-03-18 21:16 
 Re: Standard marking for altered mouthpiece  new
Mark Charette 2014-03-18 21:22 
 Re: Standard marking for altered mouthpiece  new
fskelley 2014-03-18 21:25 
 Re: Standard marking for altered mouthpiece  new
fskelley 2014-03-18 17:54 
 Re: Standard marking for altered mouthpiece  new
Mark Charette 2014-03-18 21:56 
 Re: Standard marking for altered mouthpiece  new
fskelley 2014-03-18 21:59 
 Re: Standard marking for altered mouthpiece  new
Caroline Smale 2014-05-18 03:50 
 Re: Standard marking for altered mouthpiece  new
fskelley 2014-05-18 17:31 
 Re: Standard marking for altered mouthpiece  
Caroline Smale 2014-05-19 01:40 
 Re: Standard marking for altered mouthpiece  new
Caroline Smale 2014-05-19 02:01 
 Re: Standard marking for altered mouthpiece  new
GBK 2014-05-19 01:58 
 Re: Standard marking for altered mouthpiece  new
fskelley 2014-05-19 17:55 
 Re: Standard marking for altered mouthpiece  new
Caroline Smale 2014-05-19 22:34 


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