Hi All,  I'm about to restore a Hupfeld Phonola capable of playing
88-note and 73-note rolls.  The owner decided to let me repair it so it
will play again.  (Is this still called a restoration then?)  I'll be
using pneumatic cloth and not leather that was used originally on all
pneumatics.  I've already redone the pneumatic that holds the gearing
in play or rewind.  Before I do any further work I would like to ask,
who has worked on a Hupfeld before?

The piano is by Lipp & Sohn, an early Hupfeld player piano where the
control panel swings up from underneath the keyboard.  As 73-note music
rolls play bottom to top, the take-up spool can be taken out and placed
in the top of the spoolbox where the 88-note roll would normally be.
In this manner a 73-note roll can be played.  A lever switches the
trackerbar to 73-notes and adjusts the gearing.  (I must be careful not
to get jealous, as I have the ordinary straightforward pumper.)

The Lipp piano is in beautiful shape (although it needs tuning and
regulation) and has a very rich bass tone.  It'll be my second
restoration job, I only did my own player so far, and that was not
1% as complicated as the Hupfeld seems to be.

I hope somebody can tell me what the difficulties are to watch out for,
special things to keep in mind and that sort of things.

Regards,
Niels Berkers, Arnhem
The Netherlands