Parabola generators with auxiliary reset function

Parabolic correction signal amplitude control loop

Parabolic current generator

Parabolic signal generator

Parabolic signal timing loop

Parabolic voltage generating apparatus for television

Parabolic voltage generating circuit

Parabolic voltage generating circuit

Parabolic waveform generator

Parabolic-wave shaping circuit for focus-correction

Parabolic-wave shaping circuit for focus-correction

Parabolic-wave shaping circuit for focus-correction

Parallel filament electron gun

Parallel sweeping system for electrostatic sweeping ion implante

Particle-impact localizing device, a cathode-ray oscilloscope an

Passive compensation of focus tracking utilizing winding and...

Penetron color display tube with channel plate electron multipli

Phase correction arrangement for deflection circuit

Phosphor protection circuit for multiple CRT projection televisi

Photomultiplier tube with gain control