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specification 9/28/2008,    completed on 10/10/2008(some detail works left)
12 string  Jumbo "Wedge" body 28.6" scale baritone acoustic

 

Sound Clip and comment by Doug Young
http://acousticplayermagazine.com/community/index.php?showtopic=1588

 

 

Hi Doug, 
Here is  the string tension calculated by using string tension applet.
http://www.pacificsites.com/~dog/StringTensionApplet.html

 

scale:25.5   EADGBE light gauge 6string      163.42#
scale 28.6   BF#BEF#B  6string EXP23      245.04#
scale 28.6   AEADEA 12string   EXP23+other 6strings      375.05#
scale 28.6   AEADEA 12string   LAB_BG-12      363.38#
 
The string tension of the 12string baritone when it is tuned to a-A is 50% higher than that of baritone tuned to b-B.
This is a sort of expecting thing.

Tony

 

 

len 25.5"

E .012" PL == 23.35#
B, .016" PL == 23.3#
G, .024" PB == 30.24#
D, .032" PB == 30.53#
A,, .042" PB == 29.94#
E,, .053" PB == 26.06#
total == 163.42#
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len 28.6"

B, .016" PL == 29.31#
F,# .022" PL == 31.1#
E, .029" PB == 40.01#
B,, .048" PB == 61.01#
F,,# .060" PB == 52.79#
B,,, .070" PB == 30.82#

total == 245.04#
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len 28.6"

A, .016" PL == 23.26#
A, .016" PL == 23.26#
E, .022" PL == 24.68#
E, .022" PL == 24.68#
D, .029" PB == 31.76#
D .012" PL == 23.32#
A,, .048" PB == 48.42#
A, .016" PL == 23.26#
E,, .060" PB == 41.9#
E, .032" PB == 48.39#
A,,, .070" PB == 24.46#
A,, .042" PB == 37.66#

total == 375.05#
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len 28.6"

A, .015" PL == 20.44#
A, .015" PL == 20.44#
E, .019" PL == 18.41#
E, .019" PL == 18.41#
D, .030" PB == 34.1#
D .015" PL == 36.43#
A,, .044" PB == 41.1#
A, .020" PL == 36.35#
E,, .056" PB == 36.53#
E, .028" PB == 37.08#
A,,, .080" PB == 30.26#
A,, .040" PB == 33.83#

total == 363.38#