Phonograph with photoelectric scanning

Details Phonograph with photoelectric scanning Phonograph with photoelectric scanning

G - Physics

11

B

342/3, 181/50

G11B 3/10 (2006.01) G11B 3/095 (2006.01) G11B 19/06 (2006.01) G11B 21/10 (2006.01)

Patent

CA 1047410

ABSTRACT Phonograph equipment incorporating photo- electric scanning to detect bands between record tracks; an electronic counter to count the detec- ted bands; a selector for making track selections; an electronic memory for storing selections; con- trol circuitry for comparing the contents of the counter and memory to control a tone arm of the equipment to play selected tracks and lift from a record at the end of a selection; and a tone arm drive comprising means for lifting and lowering the arm and means for driving the arm laterally under control of the control circuitry.

246828

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