[CAUT] 1098 slight redesign

[Jim Busby]

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Andrew,

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Now you're sounding like Del. :-)

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I've read about it in the "5 lectures" but don't really know the nuts
and bolts, or more specifically "how to". Could you explain, or direct
me to readings?

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Thanks!

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Jim Busby BYU

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________________________________

From: caut-bounces@ptg.org [mailto:caut-bounces@ptg.org] On Behalf Of
Andrew Anderson
Sent: Friday, February 10, 2006 6:32 AM
To: College and University Technicians
Subject: Re: [CAUT] 1098 slight redesign

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Jim,
If it is thumpy, have you considered adding some impedence?

Andrew Anderson

At 01:22 PM 2/9/2006, you wrote:



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.
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Regards,
=20
Jim Busby BYU


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