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 > April 2014 > 2014.04.27 > 03Prev  Next


Duo-Art 5-position Modify Switch
By Bill Chapman

A search on the early D-A upright expression box turns up
little information on the 5-position switch labeled

  "Concert", "M P", "P P", "P Pedal", "Dance".

I was able to sketch some of the expression box connections of the
switch and may be able to puzzle out the rest once the expression
box is restored.  Attached is a picture of the box showing the extra
linkages with one of the two smaller pneumatics.  With the switch
indicator pointing at the "M P" level there is no change in the
mechanism whether set on the M or the P.  Also unexplained is
the double "P P" with the spacing in between the letters.  I have
a picture, if interested.

The old white cloth shown in the picture was still quite air-tight,
though replaced.  It was a light weight cloth with a black coating
on the interior surface.  The pictures shows an extra pneumatic which
lifts a lever that limits the throw of both accordions.  If anyone
has experience with this expression box, particularly opening it up,
I would like to hear from you.

Bill Chapman - in windy, dusty La Quinta, Calif.
shazam32@earthlink.net.geentroep [delete ".geentroep" to reply]

 [ Early expression box with extra controls
 [ http://www.mmdigest.com/Attachments/14/04/27/140427_105440_D-A%20expression%20box%20w%20pneumatic.jpg 

 [ Randolph Herr wrote about the 5-position modify switch at
 [ http://www.mmdigest.com/Archives/Digests/200205/2002.05.04.08.html 
 [ -- Robbie


(Message sent Sun 27 Apr 2014, 17:54:40 GMT, from time zone GMT-0700.)

Key Words in Subject:  5-position, Duo-Art, Modify, Switch

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 1995-2024 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

Please Support Publication of the MMD with your Generous Donation

Pay via PayPal

No PayPal account required

                                     
Translate This Page