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Symbols and Abbreviations 168
Conducting Materials 202
54 other sections not shown
acoustic alternating current amplifier amplitude angle anode antenna approximately attenuation audio band broadcast cable capacitance cathode characteristic circuit class C amplifier coil component condenser conductor connected constant coupling curve cycles decibels deg cent diaphragm dielectric dielectric constant dielectric strength direct direct current distortion effect electrical electrode energy equations factor filter frequency range ground harmonic high frequencies hysteresis increase inductance inductor input insulation load loss loudness magnetic material maximum measured mechanical meter method microphone modulation noise obtained ohms operation oscillator output peak pentode plate current plate voltage Proc quency radiation radio ratio reactance receiver recording rectifier relay resistance resistor resonant reverberation shown in Fig signal sound speaker standard telephone temperature terminals Thyratron transformer transmission transmitter triode tuned unit usually vacuum tube variation varies voltage volts watts wave wavelength winding wire