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. >_______________________________________________ >Pianotech list info: https://www.moypiano.com/resources/#archives
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