Pico Electronics Limited

Henry Jamieson Riddoch

Neil David Duffy

Leslie Alan Leach

Leslie A Leech

Gramophone equipment has a record changing mechanism including a screw arrangement which can be operated to lift and lower a record support platform.

Gramophone equipment

Gramophone equipment incorporating photoelectric scanning to detect bands between record tracks; an electronic counter to count the detected bands; a selector for making track selections; an electronic memory for storing selections; control 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.

Growing community of inventors

Leslie, United Kingdom

Henry Jamieson Riddoch