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 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 two dynamic windings for energy recovery
Focusing electrode system having burring parts of differing size
Focusing system for color TV camera
Focusing unit
Format reconfigurable CRT display
Free space electron switch
Frequency independent CRT horizontal sweep generator having curr
Front/back porch voltage-regulator of vertical focus control sig