Three electrode arc-discharge lamp
Three lamp ballast
Three-way fluorescent lamp device
Time delay lamp ballast circuit
Transformerless power circuit
Traveling wave tube heating coil power supply with varying frequ
Tri-model type circuit breaker and rapid-start fluorescent lamp
Two-mode electronic ballast
Ultraviolet light system having means for maintaining constant i
Vacuum fluorescent display filament drive circuit
Voltage limited ballast for gaseous discharge devices
Voltage multiplier device
Wattage reducing device for fluorescent fixtures
Wide illumination range fluorescent lamp
Wide range load current regulation in saturable reactor ballast