Abstract: A color television camera has several pick-up tubes (T1, T2, T3) which are arranged substantially horizontally or vertically in the camera. The pick-up tubes (T) each have a mu-metal shielding (mu1) against magnetism. Each substantially vertically arranged pick-up tube (T2, T3) has an additional second mu-metal shielding (mu2, mu2'), which is absent for the horizontally arranged tube. The second shielding may be in the form of a single plate (mu2), overlapping the pick-up tube or two plates (mu2, mu2') arranged on both sides of the pick-up tube and overlapping the tube. Deflection errors, especially in the corners of the television pictures caused by magnetic fields, are reduced to acceptable values.

Abstract: A television line deflection circuit for recording or display, comprising a main and an auxiliary deflection signal generator. The main deflection signal generator applies a line-periodic, pulse-shaped voltage to a series arrangement of a deflection coil and a transformer winding. Of a further transformer winding a first terminal is connected to an auxiliary deflection signal generator terminal carrying a varying voltage and a second terminal is connected via a diode to a terminal carrying a reference voltage. A capacitor may be provided in parallel with the diode. An auxiliary deflection voltage which varies in a desired manner results in the desired scan, it being possible to employ for linearity correction a voltage which varies step-wise at intervals during line scanning periods and is, for example, generated by a microprocessor.