[pianotech] Re universal strings?

[Matthew Todd]

How about the mismatch going to the next note?


TODD PIANO WORKS 
Matthew Todd, Piano Technician 
(979) 248-9578
http://www.toddpianoworks.com

--- On Sun, 2/6/11, Ryan Sowers <tunerryan at gmail.com> wrote:


From: Ryan Sowers <tunerryan at gmail.com>
Subject: Re: [pianotech] Re universal strings?
To: pianotech at ptg.org
Date: Sunday, February 6, 2011, 5:00 AM


 I have used universal strings a number of times successfully. Are they an ideal repair? Sometimes not, but like many repair procedures we have at our disposal: they have their time and place. Most problems I have seen have been from mismatched bichords. I solved this problem by investing in 2 sets of universals, so that if I bichord is broken, both strings can be replaced with a matching pair. 


I'd like to see the charts as well. 




On Fri, Feb 4, 2011 at 11:18 PM, Mr. Mac's <tune-repair at allegiance.tv> wrote:

Joe,

Well, I am gratified that you are not a naysayer.

I still don't see how you can approximate measuring
  round core against hexagonal core (flat side vs edges).
I use a digital caliper for measuring outer diameter
  of all music wire and bass strings.

Recent example this January:
I replaced both strings on a bi-chord (A2, .074, Wurlitzer Grand) last month
  with Universal strings. Measured only the outer. Turned out excellent.
Unless one looked closely, one could never tell by appearance,
  nor could one tell by sound. Blended in great.

I do agree that there are times when not all replacements
  with Universal strings match up to desired results.
  That's just part of the biz.

If you're willing to share, I would be interested
  in viewing this chart and formula you have
  for educational purposes at the minimum.

Sincerely,

Keith



On Feb 5, 2011, at 12:40 AM, Joseph Garrett wrote:

> … I had mixed success until
> I started getting the cores closer. I even have a chart that shows the
> sizes of what should be and  what it really is. Then, along came John
> Rhodes. <G> I posed the question to him in regards to the difference
> between the round "original" string core shape and the hexagonal shape of
> the Universal core. He came up with, yet, another chart and formula to get
> even closer. I have had very good success since then. …




-- 
Ryan Sowers, RPT
Puget Sound Chapter
Olympia, WA
www.pianova.net
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