Anatomy of a WurliTzer Theatre Pipe Organ
Magnet - Exploded View
The coils slide onto the poles.
The Armature Disk sits over the brass exhaust port in the cap.
Normaly the Armature seals the air inside the cap. Air moves down the opening between the poles
and connects to the Primary Pneumatic. The internal air pressure helps push the Armature down.
When the magnet is powered the Armature is lifted towards the poles. This blocks the air entering the
cap between the poles and opens the exhaust port. Air in the Primary Pneumatic is able to escape
through the exhaust port so presure inside the chest squashes the Primary Pneumatic and forces the
air out of the exhaust port.
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