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SOME IMPORTANT ELEMENTARY PRINCIPLES
ELEMENTARY PRINCIPLES OF THE THERMIONIC
IMPORTANT FACTS ABOUT AMPLIFIERS
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adjusted aerial amplifier amplitude anode anode current applied artificial line axis base voltage beam bias capacity cathode ray tube cavity resonator characteristic impedance coaxial line component condenser conductor consequently constant coupling current flows curve cycle device diagram diode dipole direction discharge display duration echo effect electric field electrons employed energy equal grid current impedance increases inductance input length load magnetic field magnetron matching maximum megacycles microseconds mode multivibrator negative ohms operation oscillator output phase positive potential produce radar radiation range mark ratio reactance receiver rectangular reflected reflector resistance resonant cavities resonant circuit rotating rotor sawtooth wave screen Selsyn shown in Fig signal sine wave space charge spark gap square wave standing wave ratio standing waves stator sweep switch Synch synchronising target terminated transformer transmission line transmitter triode tube tuned valve velocity vertical volts wave-guide waveform wavelength width zero