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Location: Waurika OK | I had a set of D'Addario Elec. 10's w/wound third on my CV 68. Worked ok, but as you can imagine the e and b were a little thin and hard to eq without getting too much bass.
So I put on a .013 e and an .016 b out of a set of acoustic strings. Made everything just about right.
It was easy to see that the dia. increased by 30%, but I wondered what the increase in mass was. Took a .010 and a .013 to my pharmacist friend and we weighed them on his electronic scales. Found out that the mass increased by 80%. Easy to see how a small increase in string dia. can make such a big change in sound.
Probably no one but me interested in such trivia, but thought I would share it anyway. |
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Location: Orange County, California | you have no idea how cool that is. I use Savarez 520P1's on my 1763. They are all wrapped E to e, and although they are called "high tension" I don't think they feel like it, and you can bend them easily. The larger diameter trebles are easier to play and the extra mass really gets the top moving. I want to try them on an Adamas classical prototype to see how they sound. |
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| I just looked on the D'Add site and the tension on a 10 is 16.2lbs and on a 13 27.4lbs.
To weigh so much more with such a small diameter increase and to have so big a tension increase does it mean they actually use a denser wire? Or is it a completely different wire because of the acoustic/electric difference? |
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Posts: 782
Location: Waurika OK | Of course, there could be a difference in the composition of the wire that would account for some of the added weight. However, it takes more material to increase the dia. of a .010 string by .001 than it does to make a string of .001 dia. because the .010 string has a larger circumference.
Another illustration; If, for instance, you double the diameter of a water pipe you increase the volume 4X's. (this is a known and constant value.) So, if you doubled the dia. of a guitar string you would increase its mass 4X's. (Not talking about wound strings, other variables apply.)
The main reason for increased tension on heavier gauge strings is that it simply takes more tension to take a heavier string to the same pitch as a lighter one. |
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Location: Anchorage, Alaska | This is way good stuff guys! |
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| Schroeder'....."I just looked on the D'Add site and the tension on a 10 is 16.2lbs and on a 13 27.4lbs.
To weigh so much more with such a small diameter increase and to have so big a tension increase does it mean they actually use a denser wire? Or is it a completely different wire because of the acoustic/electric difference? "
It is not just the dia. of the string/or it's mass that determines the overall tension. It is the note you are pulling the string too.... along with the actual diameter that ultimatly determines this.
If you were to tune a set of strings all to the same note then you may see an even pattern throughout the string diameters in comparison to the lbs of tension.
It is a facinating topic actually believe me when I say I have worked on this for some time. Bass guitar strings can put some incredible tension on a long scale bass.
Big difference between a nylon core string and a steel core string, this I always found facinating? and so this conversation goes on & on & on & on.
Randy |
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Location: Carle Place, NY | Some high school geometry:
The cross-section of a guitar string is a circle.
Area of a circle = Radius x radius x 3.14 (Pi)
If you increase the radius or diameter by 30%, the corresponding increase in area is 69%. All you really need to calculate is the difference between the squares of the diameters.
10 x 10 = 100
13 x 13 = 169
A .013 string has a 69% increased cross-section area over a .010 string. The extra 11% that xnoel's pharmacist friend found with the digital scale is probably due to the string winding at the ball end of the string. |
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Location: Phoenix AZ | Actually the .010 has 41% less cross section than the .013. Dave |
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Location: Carle Place, NY | Same difference.
169 is 69% more than 100.
100 is 41% less than 169. |
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Location: Phoenix AZ | I know, it was a joke! |
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Location: Carle Place, NY | :D
OK, you got me on that one. |
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| Good stuff - altho you didn't say if it was apple Pi or pecan Pi. |
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Location: NJ | Or "The Life of Pi"
(book I'm currently reading) |
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| Good book. Tho I'm not sure why it won all thoise prizes over here. |
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Location: Earth·SolarSystem·LocalInterstellarCloud·Local Bub | fibonacci sequence.... |
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| I know that one:-
3, 6, 9, the goose drank wine.... |
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Location: NJ | Is that anything like 1Tequila, 2Tequila, 3Tequila, Floor?? |
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| :D
A fellow mathematician. |
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A bit of string info
