Here is a technical look at a 3 manual plus pedal reed organ is made by K.A. Anderssons Orgelfabrik of Sweden, with a manufacturing date around 1895. It is a suction based instrument, it contains almost 1200 reeds, plus a set of bells on the top manual which also is connected to a sustain pedal. This video is a small demonstration of the bell action - which is basically identical to a piano action except that the hammers hit bells. The bells are saucer bells, each one has its own wooden resonanc

Bell Indicator Circuit for Hotelling | Mb Electrical