Welcome to the Piano World Piano Forums
Over 2 million posts about pianos, digital pianos, and all types of keyboard instruments
Join the World's Largest Community of Piano Lovers (it's free)
It's Fun to Play the Piano ... Please Pass It On!

SEARCH
the Forums & Piano World

This custom search works much better than the built in one and allows searching older posts.
(ad 125) Sweetwater - Digital Keyboards & Other Gear
Digital Pianos at Sweetwater
(ad) Pearl River
Pearl River Pianos
(ad) Pianoteq
Latest Pianoteq add-on instrument: U4 upright piano
(ad) P B Guide
Acoustic & Digital Piano Guide
PianoSupplies.com (150)
Piano Accessories Music Related Gifts Piano Tuning Equipment Piano Moving Equipment
We now offer Gift Certificates in our online store!
(ad) Estonia Piano
Estonia Piano
Quick Links to Useful Stuff
Our Classified Ads
Find Piano Professionals-

*Piano Dealers - Piano Stores
*Piano Tuners
*Piano Teachers
*Piano Movers
*Piano Restorations
*Piano Manufacturers
*Organs

Quick Links:
*Advertise On Piano World
*Free Piano Newsletter
*Online Piano Recitals
*Piano Recitals Index
*Piano Accessories
* Buying a Piano
*Buying A Acoustic Piano
*Buying a Digital Piano
*Pianos for Sale
*Sell Your Piano
*How Old is My Piano?
*Piano Books
*Piano Art, Pictures, & Posters
*Directory/Site Map
*Contest
*Links
*Virtual Piano
*Music Word Search
*Piano Screen Saver
*Piano Videos
*Virtual Piano Chords
Topic Options
#619690 - 01/28/04 01:02 PM coupled string tuning
pianoseed Offline
500 Post Club Member

Registered: 06/13/01
Posts: 884
Loc: here
Featured on the cover of Feb 2004 PTG journal is a cliplike device put on the right two strings of a unison. According to the article it causes the strings to vibrate at exactly the same pitce. Anyone have expieriences with the device? They are attached to the right two strings of all trichord unisons at about 1/8 inch from the bridge in the speaking length. All three stings are tuned as a unison, but this device is supposed to keep the right two strings in unison longer than without the device.
_________________________
pianoseed

Top
(ad PTG 568) Grand Action Regulation in 37 Steps
Grand Action Regulation in 37 Steps
#619691 - 01/28/04 02:31 PM Re: coupled string tuning
RonTuner Online   content
1000 Post Club Member

Registered: 01/21/04
Posts: 1660
Loc: Chicagoland
Yes, I just installed my first set here at the school. The patient is an old Lyon & Healy grand in our secondary piano lab. I'll try and report back, but I probably won't work on this instrument again until the spring.

I did notice that tuning was an adventure! The theory is that you tune each unison from right to left. That way the two linked strings are tuned first, then the third is brought into the mix. The problem is that the clips accentuate the "Virgil" effect; that two strings together will vibrate lower that one vibrating alone. I had to pull the first string about 3-5 cents over to get the two together to end up on pitch. I used a lot of "splitting the unison" technique to get the pitch in the right place. I worry about doing a big pitch adjustment, but time will tell. The trouble I had is that this particular piano is a little jumpy with loose pinning, so delicate control is a little tough. Also, I think it would be easier to slide the little clips on cleaner wire...

Ron Koval
Chicagoland

(by the way, didya see my Verituner review?)
_________________________
Piano/instrument technician
www.ronkoval.com
@ronkoval

my piano videos:
http://www.youtube.com/profile_videos?user=drwoodwind


Top
#619692 - 01/28/04 09:44 PM Re: coupled string tuning
SamLewisPiano.com Offline
500 Post Club Member

Registered: 08/19/01
Posts: 635
Loc: WHITE BLUFF (Nashville area) T...
Yes, Ron, I enjoyed your VeriTuner article. I bought mine 2 years ago and pray that Dave Carpenter succeeds wildly with this machine, so I never have to be without one. I sent it in for service some time back, and had to go back to my SAT while it was gone. That was really when I realized how much of a load the VT had taken off me. Going back to the SAT, I was doing adjustments and corrections that I didnt have to do with the VT. Looking forward to meeting Dave at the Nashville convention this year
_________________________
Since 1975; Full-time piano tuner/tech in Nashville;
Lacquer and polyester specialist.

www.SamLewisPiano.com

Top
#619693 - 01/29/04 10:53 PM Re: coupled string tuning
JIMBOB Offline
1000 Post Club Member

Registered: 11/18/02
Posts: 1323
Loc: South Carolina
I just got my copy of the Journal today. the concept sounds pretty good but I wonder
how well it will be accepted. I guess we will have to check it out. I am a little concerned about putting a clip in a string under tension.
What happens to the clip when the string breaks during a tuning or if someone really pounds the piano ? It could be very dangerous I would think.
_________________________
Certificate in Piano Technology
Associate Member PTG
Yamaha & Petrof/Nordiska Training
Dampp-Chaser System Installer
Certified Pianomation Installer

Top
#619694 - 01/30/04 08:40 PM Re: coupled string tuning
Manitou Offline
1000 Post Club Member

Registered: 01/08/02
Posts: 1044
Loc: Colorado
Have looked into this some.

My comments are:
- Pulling strings together means one string having less sdie bearing on bridge pin, maybe no longer enough
- Uniting two strings, inborn with diff inharmonicity seems counterproductive and may make accurate tuning/listening harder
- Creating a metallic bridge or causeway between two strings of unequal length, again causes me concern due to inharmonicity
- Clipping strings together with uniform tension seems impossible due to bridge-pin placement and string alignment
- And finally, placing some foreign aboject (metallic no less) o speaking length of strings seems rather a slippery trick, that has much potential to bacfire and make ugly undesirable sounds...

But as a Frenchman, it is in my blood to be pessimistic...

Manitou - Pianist - Technician
_________________________
Manitou - Pianist - Technician

Top
#619695 - 01/30/04 10:48 PM Re: coupled string tuning
Bob Offline
3000 Post Club Member

Registered: 06/01/01
Posts: 3867
I agree with Manitou - interesting, but given the above, the extra tuning stability is probably a result of the extra pounding needed to tune the two strings in unison in the first place. Nothing like a few good test blows to make a unison stay.
_________________________
www.PianoTunerOrlando.com






Top

Moderator:  Piano World 
What's Hot!!
HOW TO POST PICTURES on the Piano Forums
-------------------
Sharing is Caring!
About the Buttons
-------------------
Forums Rules & Help
-------------------
ADVERTISE
on Piano World

The world's most popular piano web site.
-------------------
PIANO BOOKS
Interesting books about the piano, pianists, piano history, biographies, memoirs and more!
(ad) HAILUN Pianos
Hailun Pianos - Click for More
ad (Casio)
Celviano by Casio Rebate
Ad (Seiler/Knabe)
Seiler Pianos
Sheet Music
(PW is an affiliate)
Sheet Music Plus Featured Sale
(125ad) Dampp Chaser
Dampp Chaser Piano Life Saver
(ad) Lindeblad Piano
Lindeblad Piano Restoration
New Topics - Multiple Forums
Exorcist movie main theme
by Danijelcro
Today at 12:03 PM
Free Cunningham Piano Company Grand Piano
by Rich D.
Today at 11:05 AM
Baldwin capo: a metallic-buzz sound generating system
by A443
Today at 11:00 AM
MP11 sustain pedal (F30) release: possible issue?
by kanadajin
Today at 10:59 AM
Chopin - Scherzo 1 Help
by YoungNoir
Today at 10:22 AM
Who's Online
148 registered (accordeur, Al LaPorte, ajames, ando, 44 invisible), 1549 Guests and 15 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
76290 Members
42 Forums
157709 Topics
2316523 Posts

Max Online: 15252 @ 03/21/10 11:39 PM
(ads by Google)

Visit our online store for gifts for music lovers

 
Help keep the forums up and running with a donation, any amount is appreciated!
Or by becoming a Subscribing member! Thank-you.
Donate   Subscribe
 
Our Piano Related Classified Ads
|
Dealers | Tuners | Lessons | Movers | Restorations | Pianos For Sale | Sell Your Piano |

Advertise on Piano World
| Subscribe | Piano World | PianoSupplies.com | Advertise on Piano World | Donate | Link to Us | Classifieds |
| |Contact | Privacy | Legal | About Us | Site Map | Free Newsletter | Press Room |


copyright 1997 - 2014 Piano World ® all rights reserved
No part of this site may be reproduced without prior written permission