| 摘要 |
An automatic record changer is provided in which either 7-inch records or 12-inch records are supported at the edge thereof by an adjustable platform and at the center by a flat blade spindle having no moving parts, the platform being moved bodily toward the spindle in either the 7-inch or 12-inch position thereof to eject the bottom record from the flat blade spindle. The speed of the turntable is adjusted to 45 rpm in response to the positioning of a large hole record spindle at the center of the turntable in place of the flat blade spindle. Provision for automatic shut off is made either substantially instantaneously in response to movement of the tone arm beyond the rest post position during a playing cycle or at the end of an automatic record changing cycle if the control knob is turned to OFF during a record changing cycle.
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