-- non-subscriber, please reply to sender and MMD --
Thank you, Willy, for the information. The original European motor
was long missing by the time the organ came to us, so I have no way
of knowing the specifics of it.
The information I'm looking for is the actual rotation speed of the
crankshaft (in RPM's) on the pump that connects to the two double
bellows. Once I know that, we can arrive at the proper pulley sizes
so it will run at that speed with the present 1175 rpm motor.