> I would hope that Aeolian used a much higher grade of paper on
> these than they did on regular Duo Art recordings.  If not, you
> would have a chance at having nothing but trash every time the
> piano went into reroll as some of the original Duo-Arts are very
> fragile and delicate.

Randy Hammond has the long term problem of his Duo-Art shredding
rolls.  I have had my Weber Duo-Art since the 'seventies and it does
not shred rolls.  However, there is a reason.

As you all know I normally consider that the factory did most
things right and I am reticent to change factory design.  However,
in a Duo-Art there is something they built that must be changed.

The tracking device is the double bellows on the left side of the
spoolbox.  It is fed a suction supply that is on always.  The tubes
from the tracker bar ears to the double pneumatic go through a small
box that is a cutout and basically pinches off those tubes while in
reroll.  This means that when a roll is playing and tracking slightly
to one side, which happens frequently, when the player goes into
reroll, that cutout box turns off those two tubes.  The continuous
suction to the double pneumatic is on so this will center the tracking
pneumatic.  If you had a roll that tracked to one side, that roll now
must rewind with the tracker centered.  This means you have several
rolls with one or the other edges frayed because the tracker forced it
to do that.

The solution to most frayed rolls in a Duo-Art is simply remove and
toss out that little box sitting on top of the soft/theme valve box and
tube directly from tracker bar ears to pneumatic.  But you are not
through yet.  The supply to the tracker pneumatic _must_ first turn off
at the reroll.  You must move its supply source to something that is
turned off when in reroll.  There are many places to tap this.  I don't
remember what I usually do as I haven't done one for a while but any
part of the stack is off on reroll so if need be tap into the stack
itself.

This will save your valuable Audiographic rolls for your next eBay sale
to get $1000 for each of those <lol>.

D.L. Bullock
www.dougbullock.ws