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#652080 - 02/10/06 09:04 PM Old Steinway B rear duplex failure
Happy Birthday Rick A Offline
Full Member

Registered: 10/28/05
Posts: 23
Loc: Belgium
When I finally finetuned a 1879 NY Steinway B (after rebuilding it),around E, F higher than 440 A, I heard sidesounds that don't belong there. Kinda metallic. But when I put my finger on the trichord from the rear duplex, so in between capo bar and pins, it stopped. Probably the metal 'stringguiders' that make the strings symphatic from there to the capo bar aren't solid anymore. Maybe I should try turning them a bit, or is there a better solution?
_________________________
Technician for 8 years

nature is always right

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#652081 - 02/10/06 09:05 PM Re: Old Steinway B rear duplex failure
Happy Birthday Rick A Offline
Full Member

Registered: 10/28/05
Posts: 23
Loc: Belgium
Of course I meant FRONT duplex, not rear, sorry
_________________________
Technician for 8 years

nature is always right

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#652082 - 02/10/06 09:21 PM Re: Old Steinway B rear duplex failure
curry Offline
3000 Post Club Member

Registered: 08/17/02
Posts: 3770
Loc: Hamilton Twp, NJ
Did you seat the strings on the front bearing bars? Was the bellyman felt for the two treble sections replaced. The felt if replaced could be too thin.
_________________________
G.Fiore "aka-Curry". Tuner-Technician serving the central NJ, S.E. PA area. b214cm@aol.com Concert tuning, Regulation-voicing specialist.
Dampp-Chaser installations, piano appraisals. PTG S.Jersey Chapter 080.
Bösendorfer 214 # 47,299 214-358

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#652083 - 02/10/06 09:39 PM Re: Old Steinway B rear duplex failure
BDB Offline
Yikes! 10000 Post Club Member

Registered: 06/07/03
Posts: 22702
Loc: Oakland
Are the screws that hold them in tight?
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Semipro Tech

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#652084 - 02/11/06 12:16 PM Re: Old Steinway B rear duplex failure
Happy Birthday Rick A Offline
Full Member

Registered: 10/28/05
Posts: 23
Loc: Belgium
'Seat the strings on the front bearing bars' do you imply pulling them up from behind the capo bar with a string hook?
What do you mean with front bearing bars? Each trichord has a kind of open agraffe where the strings are seated. That part resonates. Can't see what it has to do with felt, there is no felt in that area, only just after that point, the round pieces of felt making shure that it doesn't resonate between the open agraffe and the pin.
_________________________
Technician for 8 years

nature is always right

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#652085 - 02/11/06 03:38 PM Re: Old Steinway B rear duplex failure
curry Offline
3000 Post Club Member

Registered: 08/17/02
Posts: 3770
Loc: Hamilton Twp, NJ
To seat the strings on the front bearing bars you use a soft piece of brass rod to massage the strings down. You won't believe how much noise after restrining can occur from this alone.
That's the felt I'm talking about. Has it been replaced?
_________________________
G.Fiore "aka-Curry". Tuner-Technician serving the central NJ, S.E. PA area. b214cm@aol.com Concert tuning, Regulation-voicing specialist.
Dampp-Chaser installations, piano appraisals. PTG S.Jersey Chapter 080.
Bösendorfer 214 # 47,299 214-358

Top
#652086 - 02/11/06 03:49 PM Re: Old Steinway B rear duplex failure
Happy Birthday Rick A Offline
Full Member

Registered: 10/28/05
Posts: 23
Loc: Belgium
Yes , the felt has been replaced, you think that's the problem?
So I should massage the strings down starting from the open agraffes towards the capo bar?
_________________________
Technician for 8 years

nature is always right

Top
#652087 - 02/11/06 03:52 PM Re: Old Steinway B rear duplex failure
Happy Birthday Rick A Offline
Full Member

Registered: 10/28/05
Posts: 23
Loc: Belgium
The resonance problem is in the part where the string leaves the capo bar till the open agraffe.
The felt does its work after that part
_________________________
Technician for 8 years

nature is always right

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#652088 - 02/11/06 05:26 PM Re: Old Steinway B rear duplex failure
curry Offline
3000 Post Club Member

Registered: 08/17/02
Posts: 3770
Loc: Hamilton Twp, NJ
Rick, yes, try massaging the strings down from the felt over the bars towards the capo. Not to hard though. Is the felt the same dimension?
_________________________
G.Fiore "aka-Curry". Tuner-Technician serving the central NJ, S.E. PA area. b214cm@aol.com Concert tuning, Regulation-voicing specialist.
Dampp-Chaser installations, piano appraisals. PTG S.Jersey Chapter 080.
Bösendorfer 214 # 47,299 214-358

Top
#652089 - 02/12/06 08:51 AM Re: Old Steinway B rear duplex failure
Happy Birthday Rick A Offline
Full Member

Registered: 10/28/05
Posts: 23
Loc: Belgium
Yes, felt is same dimension. Thanks for the tip Curry, I think that's the solution.
_________________________
Technician for 8 years

nature is always right

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