String tensions

Gouch

https://djangobooks.com/forum/discussion/comment/35613#Comment_35613

Hi 15 years later👋

Re: “On average I found (for Gypsy Jazz strings) "10s" of various brands put a little over 20lbs down on an "average" top (this makes assumptions about the scale length, neck angle, bridge height & bombe height) and 11s of various brands put 6-9lbs more than that.”

What’s the thinking then on bridge weight if the down-pressure is 20-30 pounds. Does a 5 or 10 gram difference in bridge weight (assuming properly fitted) make an audible difference if same bridge material stiffness if the down pressure is 20+ pounds? Asking because I’m building these days for a 25-28 bridge height w both ebony and Irw bridges and the bridge weight even with quite an under-scoop is high, as I’m trying to cut down on bridge weight (because “lighter is better” supposedly). But if down pressure is 9,000g and you shave off 5-10g, can you hear that? 🧐

My current builds clock in around 1800g strung.

*Noting: I can hear a difference btw an ebony and IRW bridge. I think it’s a stiffness/ transference material thing but possibly weight is a factor.

pdg

Does Savarez publish string tensions (not downward force on the bridge) for their Argentine strings? Alternatively, what's the "Java string calculator" that @djangology mentions, and does it take into account the round cores, core diameters, copper winding, etc., peculiar to these strings?

wim

They do, which I found at https://www.savarez.com/argentine-boucle-1510 and https://www.savarez.com/argentine-boucle-1510mf

I took screenshots incase the links rot after some years:

pdg

Wow, thank you!

Paul

paulmcevoy75

https://www.djangobooks.com/forum/discussion/comment/124617#Comment_124617

Oh cool! I was looking for that.