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

1984-11-01

1986-06-24

Wong, Peter S.

Electricity: power supply or regulation systems

Including a transformer or an inductor

Potential transformer

336192, 338176, H01F 4004

Patent

active

045969493

ABSTRACT:
A device for varying an electrode voltage of a CRT of a color TV includes a novel potentiometer arrangement for adjusting the aforesaid electrode voltage. In known voltage-generating devices the electrode voltage is adjusted by a special potentiometer which can handle several kilovolts. According to 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 a tubular feedthrough portion and which can slide therein in order to adjust the voltage.

REFERENCES:
patent: 4271463 (1981-06-01), Tanimura et al.

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