Dummy Damper/Ron

[Keith McGavern]

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At 12:12 PM -0600 11/29/03, Ron Nossaman wrote:
>... The intended purpose of the auxiliary damper lever is to keep 
>the lifter bar off of the damper levers to give the dampers at least 
>some chance of working. The squeak is just a bonus.

While you have made some excellent points, Ron, I still am unable to 
accept this conclusion. If this were the case, most all manufacturers 
of vertical pianos would include this auxiliary damper lever in their 
piano without fail for the premises you have given. Such is not the 
case, however.

I'm standing by the 'two rod acting as one theory' as the primary 
purpose of having that lever.

Any vertical piano that needs that lever to keep a single rod away 
from the dampers for whatever reason had problems from the getgo. A 
properly designed and adjusted damper system with one continuous rod 
doesn't need it.

I'm looking at a Young Chang console system right now, and there is 
*no way* that rod, *by itself*, is going to cause leakage in the 
damper system unless someone removes more than all the lost motion 
from the sustain pedal.

Now it is self evident that the weight of the rod could effect a 
damper system that is misadjusted. Surely, that is not the issue with 
me. I am speaking only to what I have decided is the primary purpose 
of the auxiliary damper lever from a manufacturing viewpoint.

As for the squeak, ah well.

>Anyone remember the old Pianocorder damper solenoid system?

Not familiar with it. Sounds like a 'borrowing from Peter to pay 
Paul' thing though for a particular situation.

Best,

Keith McGavern
Registered Piano Technician
Oklahoma Chapter 731
Piano Technicians Guild
USA


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