Brightness control circuit for c.r.t.

Details Brightness control circuit for c.r.t. Brightness control circuit for c.r.t.

H - Electricity

01

J

355/26

H01J 29/98 (2006.01) G09G 1/00 (2006.01)

Patent

CA 1294371

8 PH. 25,115. ABSTRACT: A cathode ray tube brightness control circuit includes a resistor bridge network in one arm of which is a controlled voltage level point and the other arm of which includes a brightness adjustment potentiometer. A negative feedback amplifier has its input connected to the voltage level point and its output to one end of the bridge across which a brightness control voltage supply is connected. The voltage of the supply may be adjusted to vary the range of brightness control.

557603

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