Mechanical Music Digest  Archives
You Are Not Logged In Login/Get New Account
Please Log In. Accounts are free!
Logged In users are granted additional features including a more current version of the Archives and a simplified process for submitting articles.
Home Archives Calendar Gallery Store Links Info
MMD > Archives > February 2005 > 2005.02.06 > 05Prev  Next

Duo-Art Operating Pressure
By Alan Turner

Thank you, Eli.  More on the Duo-Art system as installed on my
Mason & Risch.  It was certainly factory installed as the case of the
piano is exactly as it should be for a Duo-Art system.  Yes, it is an
above-the-keyboard installation.

The odd thing is the assortment of parts from different Duo-Art eras.
Even the tubing design and circuitry is somewhat different than
anything I've seen in the literature, but it all works as intended
(as near as I can tell).  Incidentally, Terry Smythe, who lives just
a few miles from me, had the twin to this piano at one time in his

With regard the operating vacuum on my piano, I am quite pleased with
its dynamic range with the maximum vacuum set at 45 inches.  However,
I am interested in what it was "designed" to be as this value would
(in theory at least) provide the most accurate playback of an artist's
performance.  I may not adjust the vacuum back up into the stratosphere
even if it was designed to be there because I would suspect the 70+
year old piano action will survive much better not being pounded quite
that vigorously.

Alan Turner

(Message sent Sun 6 Feb 2005, 15:19:38 GMT, from time zone GMT-0600.)

Key Words in Subject:  Duo-Art, Operating, Pressure

Home    Archives    Calendar    Gallery    Store    Links    Info   

Enter text below to search the MMD Website with Google

CONTACT FORM: Click HERE to write to the editor, or to post a message about Mechanical Musical Instruments to the MMD

Unless otherwise noted, all opinions are those of the individual authors and may not represent those of the editors. Compilation copyright 1995-2019 by Jody Kravitz.

Please read our Republication Policy before copying information from or creating links to this web site.

Click HERE to contact the webmaster regarding problems with the website.

Please support publication of the MMD by donating online

Pay via PayPal

No PayPal account required

Translate This Page

. .