I believe I have all the parts to convert a regular upright player
(Simplex action) into a Duo-Art player.  I have a Duo-Art rotary
pump and motor and, I believe, the complete expression parts.

The only other thing I need is a Duo-Art upright tracker bar.  Oh,
I have the Duo-Art service manual, too.  Has anyone done this
conversion before?

Duaine Hechler
Florissant, Missouri
http://www.hechlerpianoandorgan.com/