The Hanchett Calliopes were quite well made, and the roll frames and
blower units were made by myself, Gordon Ramsey, Ramsey Music Service,
previously Robot Music Company. The roll frame design changed a lot
over the years, and some parts are no longer available, but I still
have some stuff for the later ones.

The oldest roll frames had a rubber belt drive with 3-step pulleys,
and then we went to DC motors and variable speed control power supplies.
The rewind motors also changed, as did the method of driving the top
shaft.

Please contact me with specific questions and please attach a photo
of the motor side of the roll frame. I will try to assist you.

Gordon Ramsey
Wichita, Kansas