I use an aluminum fork, and it IS more susceptible to temperature changes than a steel one. I like it because it rings longer and I just plain got used to it. I calibrated mine to my body temperature and check it with a technician who has an ETD every year or more. I keep it in my pocket during the day while I tune and then place it in my arm pit (outside of a tee shirt) until it feels as warm or slightly warmer than my cheek right before I tune A4. Muting the piano is usually just the right amount of time to get it up to temp. I also have a John Walker for backup. Good luck on your test! Shawn On Wed, Jan 19, 2011 at 10:04 AM, James Sasso <jwsasso at gmail.com> wrote: > Hello Everyone; > I just bought a John Walker tuning fork from Schaff in preparation for my > tuning exam. All electronic instruments indicate this fork is 6-8 cents flat > at room temperature. I'd like to get some feedback as to options. My other > forks average average to within 2 cents of C5 and A4 but the A4 one is > aluminum. I was thinking of keeping and filing the John Walker fork, but > wouldn't 6-8 cents require an awful lot of filing and mutilation of the > fork? Another option would be to return the current one and ask Schaff to > send one closer to A440. A final option I've considered is to purchase a > Sanderson Accu-fork ($165 Pianotek). Any comments would be appreciated. > Thanks, > Jim > -- Shawn Hansen RPT certified piano technician 816.896.4047 -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://ptg.org/pipermail/pianotech.php/attachments/20110119/47ff2805/attachment.htm>
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