Measurements in Radio Engineering

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McGraw-Hill Book Company, Incorporated, 1935 - Radio - 400 pages
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Calibration of Directcurrent Instruments
Methods of Measuring Alternating Voltages and Currents

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accuracy Adcock antenna adjusted alternating current ammeter amplifier amplitude amplitude modulation anode antenna applied arrangement attenuator audio audio-frequency bakelite balance band-pass filter Bell System binding posts bridge bridge circuits calibration capacitive capacity carrier wave cathode cathode-ray tube characteristic impedance characteristics choke coil Class C amplifier coefficients coil condenser constant control grid coupling crystal oscillator curve cut-off cut-off frequency cycles decibels deflection desired detector determined direct current direct-current dynamometer dynatron oscillator effect electrode electrostatic employed equivalent series resistance filter frequency meter frequency modulation fundamental frequency galvanometer grid bias grid leak ground wave harmonic harmonic sequence heterodyne heterodyne frequency meter high frequencies illustrated in Fig impedance impedance bridge inductance inductance balance input input resistance instrument ionosphere Kennelly-Heaviside layer leakage inductance linear load impedance load resistance loop loop antenna low-pass filter magnetic manganin maximum measuring megohms method modulation modulation envelope multivibrator mutual conductance negative resistance nichrome obtained ohms operating oscillator oscillograph output impedance output resistance output transformer output voltage pentode permalloy phase phase angle phase shift plate circuit plate current plate electrode plate potential plate resistance plate voltage possible potentiometer primary Proc radio frequencies radio receiver radio wave ratio reactance receiver rectifier resistors resonant resonant circuit resonant frequency result rheostat second-harmonic secondary secondary frequency standard sections series resistance shield shown in Fig shunt signal sine wave sinusoidal skin effect sky wave standard substitution method switch thermocouple thyratron transformer triode tube socket tuned circuit vacuum-tube voltmeter varying virtual height voltage divider volts wave wave length wavemeter Wheatstone bridge wire zero

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