Active Networks

admittance amplifier of Fig amplitude analysis applied audio band bandwidth bias C₁ C₂ capacitance capacitor carrier cathode circuit of Fig class-C amplifier components crystal crystal oscillator curve d-c amplifier decibel demodulated detector determined differential diode distortion E₁ E₂ effect electrons equations equivalent circuit feedback amplifier filter four-terminal network frequency frequency modulation gain-bandwidth product give grid voltage harmonic I₁ impedance interstage klystron Laplace transform linear load line magnetic amplifier maximally flat maximum mid-band mid-frequency modulating signal modulating wave multivibrator negative feedback noise figure nonlinear obtained ohms operation oscillator output voltage peak pentode phase shift phasor plate characteristics plate current plate voltage plotted pulses R-C coupled R₁ R₂ Radio Engrs ratio resistor response result sawtooth shown in Fig sidebands simple low-pass amplifier sine-wave square-wave term transistor transmission triode tuned vacuum tube voltage gain waveform zero