Fly back transformer

Fly-back transformer

Flyback transformer

Flyback transformer driving apparatus for video display applianc

Focus adjusting device for projection display

Focus circuit

Focus circuit for multi-tube image pick-up apparatus

Focus coil current generator for a cathode ray tube

Focus coil current generator for a cathode ray tube

Focus control circuit for CRT

Focus mesh structure and biasing technique for flat panel displa

Focus voltage circuit for television apparatus

Focus voltage control arrangement

Focus voltage correction circuit for cathode ray tubes

Focus voltage regulation circuit for cathode ray tubes

Focus yoke, electromagnetically focused CRT display with the foc

Focusing circuit for a cathode ray tube

Focusing device with permanent magnets for electron tube and ele

Focusing device with two dynamic windings for energy recovery

Focusing electrode system having burring parts of differing size