Matches 1 - 12 out of 12
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4223247 Metal vapor discharge lamp  
The invention relates to a high-pressure sodium vapor discharge lamp which comprises a discharge tube provided with an external starting electrode. In accordance with the invention the lamp...
3953763 Pulsed xenon arc lamp operating circuit  
A circuit for the repetitively pulsed operation of a xenon arc discharge lamp. A first SCR is responsive to a first control circuit when fired to allow the charging of a capacitor through a first...
3890540 Apparatus for operating gaseous discharge lamps on direct current from a source of alternating current  
A system providing flickerless operation of a gaseous discharge lamp utilizes a DC voltage applied across the lamp electrodes. Low starting voltage and power consumption are obtained by applying an...
3403293 Starter circuit for three-electrode gaseous discharge device  
3371246 Fluorescent lamp circuit with a voltage boosting transformer convertible to a variable inductance for current regulation  
3363168 IGNITION CIRCUIT FOR INVERSE-PARALLEL CONNECTED IGNITRONS UTILIZING A SINGLE SEMICONDUCTOR CONTROLLED RECTIFIER  
3328622 Electric discharge device having primary and secondary electrodes  
3311784 Preignition prevention in ignitrons by delayed application to the auxiliary anode  
3280366 Aircraft wing light  
3178555 Electric arc welding apparatus  
2924749 Control circuitry  
2803784 Firing circuit  
Matches 1 - 12 out of 12