is not altered there is no defect of causing the picture quality to be deteriorated fig1 shows another embodiment of the multi beam video projector of multi tube type according to the present invention in fig1 like parts corresponding to those in fig1 are marked with the same references in the second embodiment shown in fig1 a signal provided by adding a luminance signal component and a color difference signal component of the signal from one scanning line the signal from the present scanning line is supplied to the first cathodes k1 of each of the cathode ray tubes 1r 1g and 1b while a signal which is formed by adding and averaging the luminance signal component from the signal of the one scanning line and the luminance signal component of the signal from the preceding scanning line the signal from the scanning line preceding the present scanning line and by adding and averaging the former and the color difference signal component of the signal from the one scanning line is supplied to the second cathodes k2 in fig1 the luminance signal y separated by the luminance signal chrominance signal separating circuit 22 is supplied directly to an adder 32 and also supplied through a delay line 33 having a delay amount of 1h to the adder 32 the added signal from this adder 32 is adjusted to have the 1 2 level by a level adjuster 34 and then supplied through the signal processing circuit 23 to adders 24r 2 24g 2 and 24b 2 the luminance signal y separated by the separating circuit 22 is also supplied through the signal processing circuit 23 to adders.