Cathode ray tube apparatus having velocity modulation coil

A cathode ray tube apparatus comprising:

• a cathode ray tube that includes a glass bulb formed from a panel and a funnel connected together and an electron gun housed within the glass bulb, and is operable to emit an electron beam from the electron gun toward a phosphor screen formed on an inner surface of the panel;
• a deflection yoke including a horizontal deflection coil and a vertical deflection coil, and operable to scan the electron beam horizontally and vertically over the phosphor screen;
• a velocity modulation coil arranged outside the cathode ray tube, and operable to modulate a velocity at which the electron beam is scanned horizontally;
• and
• a magnetic member arranged to surround an outer circumference of the cathode ray tube with the velocity modulation coil positioned, between the outer circumference of the cathode ray tube and an inner surface of the magnetic member, the magnetic member covers a space between a first electrode and a second electrode of the electron gun that are aligned in an axial direction.