Hi gang Don Wigent here: I have found damper springs so strong on some of the cheeper pianos that the pedel trap work is breaking. Lets comn them down. Don Wigent East Carolina U -----Original Message----- From: caut-bounces at ptg.org [mailto:caut-bounces at ptg.org] On Behalf Of David Ilvedson Sent: Monday, October 15, 2007 2:31 AM To: caut at ptg.org Subject: Re: [CAUT] Upright geometry problem (Nordiska) How does one reduce the damper spring tension evenly? David Ilvedson, RPT Pacifica, CA 94044 ----- Original message ---------------------------------------- From: "Richard Brekne" <ricb at pianostemmer.no> To: caut at ptg.org Received: 10/14/2007 11:59:41 PM Subject: [CAUT] Upright geometry problem (Nordiska) >I run into this quite frequently, (blow reduced tho as you corrected >yourself) The damper spring is well known as a source of this kind of >thing, but I get the sense that the jack return spring is less so. It >can actually do the job on its own really IME. Sometimes these things >are really strong... especially on cheap pianos. Its almost like the >manufacturers arent aware that the thing can be too strong. >Cheers >RicB > Hi Jim- > We found that the blow had been increased and the dip increased so > much in > an attempt to give aftertouch it wasn¹t getting due to the strong > damper, > hammer and jack springs. You just couldn¹t play hard enough to > overcome the > spring strength and get the jack to clear. > Just my 2 cents. > David > David C. Brown > Arizona State University > School of Music > Piano Technician > 1-480-965-6760 > david.c.brown.2 at asu.edu
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