beginner seeking advice

[David Ilvedson]

Tsk, tsk, tsk....

David Ilvedson, RPT
Pacifica, California



----- Original message ----------------------------------------
From: "Conrad Hoffsommer" <hoffsoco@luther.edu>
To: tune4u@earthlink.net, "Pianotech List" <pianotech@ptg.org>
Received: 3/1/2006 6:31:50 PM
Subject: Re: beginner seeking advice


>At 18:08 3/1/2006, you wrote:
>>My reference to the telephone was partly a joke 
>>-- althought it is an emergency source -- but, 
>>please, for the love of all that's holy, don't 
>>tune the piano to your vacuum cleaner ...
>>
>>Unless you want a tuning that really sucks .... snicker, giggle, snort.
>>
>>Alan Barnard
>>Salem, Missouri


>The main problem with using vacuums for pitch 
>sources is that the bags get full. (if they have 
>them, and they are being used properly)

>As the dust fills the bag/clogs the filter, the 
>fan pulling the air through cannot move as much 
>air. Since the fan is not drawing as much air, it 
>is not doing as much work and the motor (with less load) will run faster.

>Motor runs faster, pitch goes up.

>I've observed a 25¢ pitch rise in one hour on one 
>vacuum. This does not even take into 
>consideration any voltage transient which may 
>have taken place. (I didn't have my multimeter out that day...)

>;-}



>Conrad Hoffsommer
>You have the right to remain silent. Anything you 
>say will be misquoted, then used against you.



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