Oh, yes indeed, it is most definitely the bass dampers. I'll check Spurlock's website. Do you find a difference in the wear of damper felt different betweem humid and dry climates? Bruce P -----Original Message----- From: David Ilvedson <ilvey at sbcglobal.net> To: pianotech at ptg.org Sent: Wed, Dec 9, 2009 10:19 pm Subject: Re: [pianotech] Knabe spinet with damper issues If you, first off, had put your arm across the bass strings to dampen them, you robably would have discovered that the bass dampers are inadequate. Read Bill purlocks articles on dampers and how to make you own bass dampers...the Knabe robably has 1 inch dampers...not long enough...I think Bill's replacement was 2 3/8" inches. His website most likely has the articles... www.spurlocktools.com David Ilvedson, RPT acifica, CA 94044 ----- Original message ---------------------------------------- rom: bppiano at aol.com o: pianotech at ptg.org eceived: 12/9/2009 8:55:18 PM ubject: [pianotech] Knabe spinet with damper issues >I had a very frustating session today with a relatively nice Knabe spinet. The hing tunes well enough but the over ring is totally unacceptable. I tried verything 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 trings 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 amper configuration - single string, bichord, trichord and flat felt just to see if here is improvement. >First off, what is the ballpark average for damper string tension? How many rams 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 -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://ptg.org/pipermail/pianotech.php/attachments/20091210/1b2b4b77/attachment.htm>
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