[pianotech] Re universal strings?

[Ryan Sowers]

 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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