Package socket and package legs structure for led and...

Parasitic oscillation suppressor for electronic tubes

Passive jitter reduction in crossed-field amplifier with seconda

Permanent magnet structure for crossed-field tubes

Permanent magnet-containing magnetron

Permanent magnets of different magnetic materials for magnetrons

Phase smoothing cathode for reduced noise crossed-field amplifie

Phased array source of electromagnetic radiation

Picture display device having a matrix of direct current gas dis

Piezoelectric crystal spark plug

Piezoelectric transformer, driver circuit incorporating the...

Pilot lamp

Pilot light assembly

Pixel mirror based stage lighting system

Planar Fluorescent and electroluminescent lamp having one or mor

Planar fluorescent lamp with starter and heater circuit

Planar ring bar travelling wave tube

Plasma Display using a double-walled enclosure

Plasma generating device with stepped waveguide transition

Plasma lamp and methods using a waveguide body and...