Thanks everybody, this is just that this website is so good for. Thanks to Mr Spurlock especially. Bruce P -----Original Message----- From: Gerald Groot <tunerboy3 at comcast.net> To: pianotech at ptg.org Sent: Thu, Dec 10, 2009 6:02 am Subject: Re: [pianotech] Knabe spinet with damper issues Other than old worn out dampers, check to see if the dummy damper is broken. Check to see if its spring is broken. If if is, it will not give enough tension to the bass section to push the bass damper rod out of place allowing the dampers to seat back onto the strings and could be the problem. If you push on the damper rod itself where the pedal rods normally engage, does this shut off the strings? If not, it is possible the problem exists with that. Jer From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf Of bppiano at aol.com Sent: Wednesday, December 09, 2009 11:55 PM To: pianotech at ptg.org Subject: [pianotech] Knabe spinet with damper issues I had a very frustating session today with a relatively nice Knabe spinet. The thing tunes well enough but the over ring is totally unacceptable. I tried everything I know to do. checked and adjusted damper alignment from every perspective check for damper follow after pushing in the strings pedals were unconnected and still the ring made sure the upper and lower felts of the bass section were engaging the strings simultaneously checked damper string tension and they were consistent I added additional damper travel into the strings and adjusted the spoon timing Still no improvement Tomorrow, I'll try new damper felts on the first damper of each section of damper configuration - single string, bichord, trichord and flat felt just to see if there is improvement. First off, what is the ballpark average for damper string tension? How many grams before the damper head moves? Second, is there an alternative to installling new damper felts? You suggestions will be most appreciated. Bruce*not much good with upright dampers" Pennington avast! Antivirus: Outbound message clean. Virus Database (VPS): 091210-0, 12/10/2009 Tested on: 12/10/2009 8:02:02 AM avast! - copyright (c) 1988-2009 ALWIL Software. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://ptg.org/pipermail/pianotech.php/attachments/20091210/81332165/attachment.htm>
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