Television receiver having single pole double throw rotary...

Details Television receiver having single pole double throw rotary... Television receiver having single pole double throw rotary...

H - Electricity

04

N

350/101, 306/313

H04N 3/227 (2006.01) H01H 19/58 (2006.01)

Patent

CA 1309444

ABSTRACT OF THE DISCLOSURE A single pole double throw rotary switch includes a non-conductive terminal board. A washer-like wiper element is rotatably secured to the terminal board by a tubular rivet. An outwardly extending portion of the wiper element selectively engages one of a pair of output terminals. When the wiper element occupies a midrange position, the rotary switch is electrically non-conductive. A non-conductive actuating member is rotatably mounted on the terminal board for positioning the wiper element. A raster centering circuit applies centering current having a DC component to a deflection yoke winding. Such single pole double throw rotary switch determines the direction of said DC component.

543499

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