Kawai Pin Blocks

[Robin Hufford]

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Hello Don,
     One, a KG-2 that I had tuned occasionally for years but which at 
that point in time was being maintained by another technician had had a 
complete Dampchaser installation - having both the drier and the 
humidifier.  I am relying on memory here but am reasonably sure it is 
accurate. 
     This installation was made in an attempt to correct the very 
pronounced instability the piano demonstrated, but which continued, 
nevertheless, afterwards.   The piano was in the chapel of a large, 
prominent televangelical(sp?) operation.  Notwithstanding these efforts, 
the instability was substantial and complaints frequent subsequent for 
months after the installation.  After the "fix", the piano is extremely  
stable.   This was noted by the technician who referred the piano, the 
problem and the customer back to me.
       A pertinent fact, this piano was in an unusual  church situation, 
that is, more favorable than customary,  as the temperature in this 
extremely large chapel was maintained relatively constant.  I do think, 
though, that the ambient moisture fluctuated substantially as crowds 
came and went, for what it is worth, and realize that the humidity 
control system, after installation, no doubt levelled this out from the 
piano's perspective.   The customer had been educated to the importance 
of maintaining the water in the tank, and, prior to the "fix", as you 
indicate, was monitored  both by myself and  the other technician to 
verify availability of water to the humidifier.  Nevertheless, the 
problems persisted and were not abated until the alterations were 
made.      I am not sure if there were others.  I have seen and tuned 
the piano many times since this installation which was, perhaps, six or 
seven years ago. 
Regards, Robin Hufford


Don wrote:

>Hi Robin,
>
>Had humidity been controlled in any of the pianos before you tried to "fix"
>them. At least in my climate *all* grand pianos are unstable without such
>control. Plate bushings or not.
>
>At 02:04 PM 19/12/2004 -0600, you wrote:
>  
>
>>Hello Don,
>>  I disagree with this and I am well aware of the fitting used in this 
>>method.
>>    
>>
>
>Regards,
>Don Rose, B.Mus., A.M.U.S., A.MUS., R.P.T.
>Non calor sed umor est qui nobis incommodat
>
>mailto:pianotuna@accesscomm.ca		http://us.geocities.com/drpt1948/
>
>3004 Grant Rd. REGINA, SK, S4S 5G7
>306-352-3620 or 1-888-29t-uner
>_______________________________________________
>pianotech list info: https://www.moypiano.com/resources/#archives
>
>  
>

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