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Methods of Modulating the Frequency or Phase of
The FrequencyModulation Receiver
Frequency to Amplitude Conversion
1 other sections not shown
Acorn valves aerial amplitude change amplitude modulation amplitude variation angle swept anode circuit automatic-gain-control capacitance carrier amplitude carrier frequency carrier vector cathode caused center-tapped characteristic coil condenser constant conversion efficiency coupling crystal oscillator curve damping resistance decoupling desired signal detector diode directly proportional distortion feedback figure 29a frequency changer frequency deviation frequency modulation frequency response frequency-amplitude converter frequency-modulated wave frequency-modulation receiver grid-input harmonic hexode high-tension impedance increased input resistance input voltage intermediate frequency intermediate-frequency amplifier kc/s maximum Mc/s modulating frequency modulating voltage modulation index mutual inductance negative noise obtained off-tune frequency oscillator frequency output voltage over-all pass-band peak phase discriminator phase modulation preemphasis primary and secondary Proc push-pull R.C.A. Review Radio radio-frequency valve reactance valve reduce resonant frequency resultant secondary circuit shown in figure sideband vectors signal-to-noise ratio single-tuned circuit suppress tion transmission transmitter tuned circuit undesired unmodulated value variable-reactance valve volts Wireless Engineer