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What Is Electronics?
The Hot Cathode Tube and Radio
The Phototube and Television
4 other sections not shown
alternating current alternating voltage amount amperes amplifier anode antenna armature atom audio signal battery beam broadcasting called capacitance capacitor cathode changes color connected current flows current to flow curve cycles per second diagram diode direct current dynode elec electric current electrical charges electron gun electronic tubes electrons are released electrons flow filament flip-flop free electrons frequency gas-filled tube germanium grid voltage heat holes inductance input lamp lens light loudspeaker magnetic amplifier magnetic field million cycles modulated molecules move negative charge ohms oscillator output particles pass phase shift photocathode phototube picture tube pieces of metal plate circuit plate current positive charge produces protons pull pulse push quency radar radio wave rent resistance saturable core reactor scans screen Servomechanisms shown shows spool switch symbol tank circuit target television thyratron transistors triode tron tube fires turns variable resistor vibrations video signal volts welding wire