Television camera

Details Television camera Television camera

H - Electricity

04

N

350/47

H04N 5/38 (2006.01) H04N 5/228 (2006.01) H04N 9/09 (2006.01)

Patent

CA 1131765

PHN. 8969. 18-4-1978. ABSTRACT : A television camera comprising a control and setting stage for the beam current control of an electron beam in a pick-up tube. Via an substantially video frequency picture signal amplifier suitable for supplying the picture signal over substantially the entire amplitude range over which the pick-up tube generates the picture signal, via a coupling capacitor the picture signal generated by the pick-up tube is superimposed as a control voltage on the setting voltage for the control electrode of the pick-up tube. A stable beam current control without oscillations is the result. - 16 -

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