...and when putting the bridge pins back in, consider rotating them to present a fresh, unindented surface to the string. That also can help mitigate false beats.
Best,
Alan
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Alan Eder, RPT
Herb Alpert School of Music
California Institute of the Arts
Valencia, CA
661.904.6483
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Original Message:
Sent: 02-28-2023 10:11
From: John Leggett
Subject: Bridge pin repair
Be careful with the CA glue. Where a little may be beneficial, a lot will deaden the tone and sustain. In other words, you can't apply it the same way as with tuning pins. It would also help to remove the pins and strings and check the deflection angle as well as clean up the v-bar if applicable.
John Leggett, RPT
Original Message:
Sent: 2/27/2023 2:26:00 PM
From: Floyd Gadd
Subject: RE: Bridge pin repair
With the single note under a strut being the issue, I would encourage you to very carefully drip some water-thin CA into the voids around the pins. This is often done without removing the wires, but I have found that approach to be problematic in more than a couple of instances. Lifting the strings out of the road, and administering the CA should give you much improvement. Here's what I use for glue application:
https://www.amazon.com/PH-PandaHall-Micro-Tips-Applicator-Dispensing/dp/B07VVQKHDJ/ref=sr_1_3?crid=4O00C8VACKY4&keywords=glue+applicator+tips&qid=1677525915&sprefix=glue+appli%2Caps%2C112&sr=8-3
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Floyd Gadd RPT
Regina SK
(306) 502-9103
Original Message:
Sent: 02-27-2023 14:20
From: Floyd Gadd
Subject: Bridge pin repair
Check out "Bridge Repairs for Better Tone" in the August 2015 Piano Technicians Journal. Right down the line of what you are proposing, with much helpful detail. Also, download the index for the Journal Archive and search on bridge pins, or bridge repair. Somewhere around the time the Spurlock article was published for the first time, there were various discussions in the Journal around this issue, with variety of alternative approaches articulated.
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Floyd Gadd RPT
Regina SK
(306) 502-9103
Original Message:
Sent: 02-27-2023 07:30
From: Michael Lynam
Subject: Bridge pin repair
Hello CAUT community
Our Steinway D in the Conservatory has odious false beats in all three wires at D5.
Of course it is directly underneath the strut.
The eye confirms elongation of the bridge pin holes.
I'm thinking of removing the wire of course and adding epoxy to it.
Should I try to remove the bridge pins?
The applicator would have to be tiny and the viscosity correct. Cleanup with denatured alcohol.
Has anyone attempted this?
Michael
Mike Lynam
Registered Piano Technician
207 350 9548