In order to fill large screens, it needs a magnetic diversion of the electron beam.

Heating, Katode and lattices are similar as with the K.O. tube. With the tension at the "lattice" you regulate the brightness of the picture. With the tension at F and telex _p you regulate the image definition and the contrast.

The external contact is connected with the graphite lining the inside one the tube and is because of several kilovolts of tension. Thus a large post acceleration and brightness are obtained. On the exterior of the glass likewise a leading lining is attached, in order to lead away the tension produced by the capacity to mass. In a color TV picture tube all above units in three-way execution are present: for everyone of the three basic colors one. The inertia of our eye produces then the mixed colors.