Matches 151 - 172 out of 172 < 1 2 3 4
Match Document Document Title
3432723 FLUORESCENT LAMP CIRCUIT EMPLOYING A CATHODE FOLLOWER CONFIGURATION  
3392309 Magnetron power supply and cathode heater circuit  
3382406 Fluorescent light starting and operating circuit with heater and light sensitive cut-out therefor  
3373364 Standby cathode heating circuit for vacuum tube  
3364373 Electron discharge device having a cathode element with a renewable electron emissive surface  
3349282 Method and arrangement for more rapidly heating indirectly heated cathodes in electron tubes  
3339019 Television receiver utilizing the horizontal output transformer as a pilot light power source  
3330991 Non-thermionic electron emission devices  
3323007 Fluorescent lamp circuit  
3320474 Emission current regulated power supply for thermionic filament  
3315124 Transistorized constant emission current regulator using a resonant transformer in the power supply  
3278782 Electron emitter comprising photoconductive and low work function layers  
3250920 Low noise tunnel-emission cathode  
3246200 Cathode including photoconductive and tunneling layers  
3213318 Bimetallic filament positioning device  
3184636 Cold cathode  
3121809 Semiconductor device utilizing majority carriers with thin metal base between semiconductor materials  
3071734 Coaxial filament transformers for pulse circuits  
3004186 Cathode-ray tube arrangement  
2913629 Method of activating thermionic emitter  
2809366 Device comprising a gas discharge tube  
3588565 Title is not available  
Matches 151 - 172 out of 172 < 1 2 3 4