t banks so as to make them act to- was portable, being car- gether when one is played. The effects are also varied by ried in processions by one tremolo and swell, which give respectively quavering and person and played by an Olil-Time Organs. rising and falling force of sound. The feet of the… … OU-Timt Organs. The wind chest is an airtight box communicating above blowing cylinder are of india rubber. The upward stroke ing and closing the with the sound board, an oblong frame or box of wood di- valve. exhausts the air from vacuum receivers, to which it is con- vided by parallel strips into…
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