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The Vacuum Rectifier
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a-c voltage action amplifier angle anode anode current anode potential anode voltage applied armature bias Bode capacitor cathode potential charge coil conduct connected constant contactor control circuit control grid current flow curve decrease desired diagram dielectric discharge drop effect Elec Electric electron flow electron tube elements emission energy feedback field filament filter firing frequency gas-filled grid potential half cycle half-wave heat ignitron impedance increase inductance input inverse lens light load long-tailed pair magnetic megohms motor negative Nyquist plot obtained ohms operation oscillator output panel parallel peak pentode permit phase phase-shift photoelectric phototube plates pliotron positive potentiometer reactance rectifier regulating relay resistance resistor reverse saturable reactor screen screen grid secondary signal sine wave speed supply suppressor grid switch temperature three-phase thyratron transformer triode usually vacuum tube vector voltage divider volts wave weld welder winding wire zero