Philippe, I fear that you are serious about this. The idea of using a vacuum cleaner as a pitch source is nonsense; forget it. Buy a tuning fork immediately. -----Original Message----- From: pianotech-bounces@ptg.org [mailto:pianotech-bounces@ptg.org] On Behalf Of Conrad Hoffsommer Sent: Thursday, March 02, 2006 6:52 PM To: Pianotech List Subject: Re: beginner seeking advice re:VTDs (vacuum tuning devices) Philippe, At 19:07 3/2/2006, you wrote: >Hi, > >I'm new to tuning too and I don't have a tuning fork yet, I'd like to >try the vacuum cleaner tuning first. >a few questions : a few answers interspersed: >1/ I suppose all vacuum cleaners are not tuned on the same pitch. No more than pianos are at the same pitch leaving the factory and arriving at the showroom. > Is there a Vacuum Cleaner tone Reference List (VCTRL) available > somewhere on the net ? Sounds like doctoral thesis material... > Does this also word with kitchen vacuum ? I only have one for the entire house, so I wouldn't know about a dedicated kitchen unit. >2/ I suppose the pitch depends on the temperature... Of course, and since different models have different length and diameters of hoses, wands and heads/nozzles, there would have to be a certain amount of stretch to consider to determine the resonant frequency/pitch. >Should I wait for my Vacuum cleaner to stabilise ? Of course!! Proper feng shui will help. >How long ? Somewhere between a fortnight and quinze jours. >3/ I'm in europe and we are supplied in 220V 50Hz. Do you think this >can make a difference in pitch for the same model of vacuum cleaner >between Europe and US ? If they were synchronous, that would make a big difference, but since most have induction motors it depends... why is there air? >4/ If for any reason I had to use a supplemental power supply >cable... Is there a risk that it infuences my reference pitch ? It all depends what you're referring to. Is that a pitch, as in cricket? >Should I pay attention to this ? No more than most people do to me. >5/ May I use the same vacuum cleaner for the tone reference and to >clean the piano ? That would depend on how many parts you suspect will get sucked up. Damper felt will clog the bag very quickly and change the pitch. Your call... >Thank you for you answers, >Philippe Thank you for providing the questions. 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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