Dampp Chaser or not, that is that question!

[Farrell]

Ed:

I agree about pitch. And yes, the piano's pitch has been observed to slide
up and down as much as 10 cents. The RH in my house varies from about 75% to
80% during rainy periods and goes as low as 35% during dry winter periods.
So, I think a DC system that works would be desirable. I am going to try my
third humidistat on my piano and see if it works any better than the two I
have tried in the past. Thanks for your thoughts.

Terry Farrell
Piano Tuning & Service
Tampa, Florida
mfarrel2@tampabay.rr.com
----- Original Message -----
From: <A440A@AOL.COM>
To: <pianotech@ptg.org>
Sent: Wednesday, February 02, 2000 8:43 AM
Subject: Re: Dampp Chaser or not, that is that question!


>
> In a message dated 2/2/0 1:22:46 PM, mfarrel2@tampabay.rr.com writes:
>
> >he darn thing right on top of and next to (actually
> > touching) the humidistat. I have placed up to three different
hygrometers
> > under the piano at the same time (the three were compared at stable
> > conditions and are known to produce similar RH readings) and get the
results
> > I have described.
>
> >Because of the known relationship between spruce and atmospheric RH, RH
> >in the soundboard environment will provide an accurate (although
indirect)
> > indicator of soundboard moisture content.
>
> Greetings,
>     I must add to the above, "so is pitch!".  After a solid tuning, in
which
> the atmosphere is noted,  a careful listen will reveal much information
about
> what the soundboard is doing.  I am not sure if I have seen the piano's
> tuning mentioned.  Is there a problem with this piano's pitch stability?
> Regards,
> Ed Foote
>