[CAUT] 1098 slight redesign

[Jim Busby]

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David,

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The low bass is really thuddy and it gets better to the break. (Although
the side by side shows the original design even worse!) Hellerbass did
the rescale and strings. I may get Arledge to do it and then we could
see, w/o changing any more variables, what that does.

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I didn't measure the new strings to compare, since I don't do much
rescaling (yet), but I guess I should. It has a tendency to make my head
explode. Vince thinks I should just get the low bass replaced from
Arledge and see what that does. What do you think?

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Thanks for the feedback. I certainly need it with this project. I'm not
willing to let this "stand" just to be done with it because I feel it
will be of value to us all. There are a bunch of these rascals around
and I certainly want to find the best formula I can. It may be that I
need a new board design and the whole banana. I'm just trying to see if
I can find a cost/time efficient fix.

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I will update you with more info.

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Regards,

Jim Busby BYU

________________________________

From: caut-bounces@ptg.org [mailto:caut-bounces@ptg.org] On Behalf Of
David Love
Sent: Friday, February 10, 2006 7:14 AM
To: 'College and University Technicians'
Subject: RE: [CAUT] 1098 slight redesign

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Is it thuddy all the way down or just in the low bass?  Who made the
strings and did the rescaling of the bass?  When you rescaled the bass
what kind of core wire dimension did you end up with in the monos and
how did the dimensions compare overall with the original?  The original
Steinway core dimensions on those are quite thick (.063 at A0 often).
On pianos that I've had rescaled I've noticed that the core wires ended
up somewhat thinner and that double wraps were added in the low bass.
These rescalings have always improved the tone at the lower part of the
piano. =20

=20

David Love
davidlovepianos@comcast.net=20

-----Original Message-----
From: caut-bounces@ptg.org [mailto:caut-bounces@ptg.org] On Behalf Of
Jim Busby
Sent: Thursday, February 09, 2006 11:22 AM
To: College and University Technicians
Subject: [CAUT] 1098 slight redesign

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List,

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We just finished a restringing/slight redesign of a 1963 Steinway
upright.=20

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1.       We ground down the "bump" and lowered the pressure bar
slightly. This made tuning a LOT better. Easier and more stable.=20

2.       We shortened the apron on the bass bridge (cantilever) to give
85mm (backscale) on the lowest bass note. It was 40mm.=20

3.       It now has Pure Sound stainless wire. This made the biggest
difference. Richer, more stable.=20

4.       Added a small tenor bridge. I'm not sure if this made much of a
difference, but the break does seem to be smoother and the bichords seem
to have a slightly stronger fundamental.=20

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A side by side listen with the same model showed vast improvements in
the plain wire sections. I think this was mainly due to the stainless
wire. Also, it tunes like a dream now! Removing the bump was easy and
well worth it.=20

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Although the piano is improved, in some ways greatly, I still don't like
the bass. It's better than the old design but still a bit "thumpy". Any
feedback??

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I attached a "before" picture and a close up of the bridge changes. The
"bump" area looks like the new 1098s so I didn't take a picture of that.

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I highly recommend the "bump" removal and the Pure Sound wire. Jury's
still out on the other changes.

=20

Regards,

=20

Jim Busby BYU


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