Description
The Victrola IV, an acoustic phonograph, was made by the Victor Talking Machine Company.
Acoustic phonographs were completely mechanical, there were no electrically powered elements. When played, the needle rode in the groves on the record. The variations in the groove moved the needle to reproduce the original sounds vibrations. The needle was attached to a diaphragm which vibrated, reproducing, to a limited degree, the original sound. The tone arm is a hollow tube which, attached to the back of the wooden cabinet, acted as a megaphone. The doors on the front of the cabinet provided some control of the recordings volume.
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