hosted on condor3913
 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

End-of-Summer Fundraising Drive In Progress. Please visit our home page to see this and other announcements: https://www.mmdigest.com     Thank you. --Jody

MMD > Archives > May 2007 > 2007.05.18 > 09Prev  Next


Hupfeld Phonola Plays Extra Notes
By Niels Berkers

Hi all,  almost two years ago I asked for advice restoring a Hupfeld.
A few MMD readers have helped a great deal.  Last week I finished
restoring the stack, and the pedal assembly is also back in working
order after much error-hunting.

Now everything is in working order I went to put the mechanism back
in the piano (the piano isn't mine but a friend's).  After some more
error hunting, finding and fixing everything works (though I need to
find and fix some general leakage).

The problem I need some advice with is the following: there are four
notes somewhere in the middle of the keyboard (F to G#), which all play
if one of their holes in the trackerbar is uncovered.  How is this
possible?  The only logical explanation to me seems that there's
something wrong with the gaskets.

This could be the gasket behind the trackerbar (it's a 73- and 88-note
player so the trackerbar is turnable to switch from 73 to 88 and back)
or one of the gaskets on the junction blocks connecting the head to the
stack, one above the keyboard, one below.  People familiar with the
early Hupfeld mechanisms will know what I mean.

The gasket connecting the stack to the junction block is renewed, the
other two seemed fine.  I wonder where the problem could be...  Most
likely in the trackerbar gasket, I think, but if anybody has any tips
or other clues about the problem, please let me know.

Regards,
Niels Berkers
the (today sunny) Netherlands


(Message sent Fri 18 May 2007, 19:27:39 GMT, from time zone GMT+0200.)

Key Words in Subject:  Extra, Hupfeld, Notes, Phonola, Plays

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 1995-2022 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