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Basic Principles of Sound
Acoustics Studio Techniques and Equipment
ConstantSpeed Devices Motors and Generators
23 other sections not shown
acoustic amplifier amplitude applied attenuator audio bias current capacitance capacitor cathode caused circuit coil configuration connected control grid cording cross-modulation curve cutting head decibels density described in Question device diagram diaphragm diode disc discussed in Question distortion effect electrons emitter equalizer feedback film recorder filter frequency characteristics frequency response galvanometer given in Fig groove harmonic high-frequency hybrid coil inch increased input insertion loss load loop loudspeaker low-frequency low-pass filter magnetic film magnetic tape manufactured measured meter microphone minus mixer modulation motor negative noise ohms operating optical oscillator output level percent phase pickup plate playback plifier preamplifier push-pull quency reactance recording head reproducing resistance resistor resonant reverberation RIAA shown in Fig signal-to-noise ratio sound track speed stage standard stereophonic stylus terminal tion trans transformer transistor typical vacuum tube variable-area voltage volts watts waveform Westrex winding