P-N junction semiconductor secondary emission cathode and tube
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 accelerator and methods therefor
Particle accelerator with frequency correction
Particle beam accelerators
Particle-impact localizing device, a cathode-ray oscilloscope an
Passive compensation of focus tracking utilizing winding and...