Device for varying an electrode voltage for a cathode- ray tube

Details Device for varying an electrode voltage for a cathode- ray tube Device for varying an electrode voltage for a cathode- ray tube

H - Electricity

01

F

355/26

H01F 19/00 (2006.01) H01C 10/38 (2006.01) H01F 38/42 (2006.01)

Patent

CA 1246244

ABSTRACT: Device for varying an electrode voltage for a cathode-ray tube. The invention relates to potentiometers for adjusting the vol- tage on an electrode of a cathode ray tube for a colour television set. In the known voltage-generating devices the voltage is adjusted by a special potentiometer which can handle several kilovolts. In accordance with the invention the potentiometer track is constituted by a resistive layer (2) situated inside the interior of the output-voltage feedthrough (10) and the wiper is constituted by the end portion of the high-voltage cable (9) which is inserted into said tubular feedthrough portion and which can slide therein in order to adjust the voltage.

466734

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