Phonograph record player with improved tone arm control

Details Phonograph record player with improved tone arm control Phonograph record player with improved tone arm control

G - Physics

11

B

181/51

G11B 3/095 (2006.01)

Patent

CA 1058092

PHONOGRAPH RECORD PLAYER ABSTRACT OF THE DISCLOSURE In a phonograph record player having a normal automatic operating cycle consisting of a lead-in operation initiated by actuation of a trigger for moving a tone arm from an elevated rest position outside the perimeter of the turntable to a set-down position on a phonograph record supported by the turntable, a play operation in which a pickup stylus carried by the tone arm engages the record at the set-down position and thereafter tracks the record groove for reproducing the sound recorded therein, and a return operation also initiated by operation of the trigger upon completion of the play operation for returning the tone arm to its rest position; a stop command signal for aborting the above automatic operating cycle and/or a repeat command signal for causing repetition of the automatic operating cycle is temporarily retained in a respective memory which provides a corresponding memory output, the completion of the lead- in operation and/or of the return operation is detected by a respective sensor to provide a corresponding sensor output, and, upon coincidence of the sensor output corresponding to completion of the lead-in position or the return operation with the memory output corresponding to a retained or stored stop command signal or repeat command signal, respectively, an AND circuit provides an output for operating the trigger. Thus, the stop or repeat command signal can be generated, as by manual actuation of a respective switch, at any time during the automatic operating cycle and takes effect at an appropriate point in such cycle.

267966

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