Elements of Radio

alternating current amount amplifier antenna atom audio base battery becomes bias called capacitance capacitor carrier cathode causes cell Chapter charge coil collector component conductor connected coupling crystal current flowing curve cycle Demonstration detector diagram diode direct current distortion drop effect electric current electrical electromotive force electrons emitter energy equal Explain filament filter fluctuating frequency give greater grid ground heat impedance increase inductance input junction known less load loop magnetic field means method modulation moving negative Note obtain ohms operate oscillator output parallel pass placed plate plate current pole positive primary produce radio wave radio-frequency radio-frequency amplifier receiver rectifier resistance resistor result secondary showing shown in Figure signal sound stage station supply transformer transistor transmission transmitter tube tuning circuit turns usually variations vary voltage volts wire